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1.
Molecules ; 29(6)2024 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-38542896

RESUMO

The effects of high-pressure processing (HPP) (450 MPa/600 MPa/3 min) on the carotenoid and vitamin E contents of smoothies made from strawberry, orange juice, banana and apple, and the same smoothies enriched with dietary fiber from discarded carrots were compared. The contents and bioaccessibilities of these compounds were also evaluated over the course of 28 days at 4 °C. The application of HPP in the formulations significantly increased the contents of ß-cryptoxanthin, α-carotene and ß-carotene and retained the contents of lutein, zeaxanthin and vitamin E compared to untreated samples. A decreasing trend in the content of each compound was observed with an increase in storage time. The application of HPP initially led to reductions in the bioaccessibility of individual compounds. However, overall, during storage, there was an increase in bioaccessibility. This suggests that HPP influences cell structure, favoring compound release and micelle formation. HPP is a sustainable method that preserves or enhances carotenoid extractability in ready-to-drink fruit beverages. Furthermore, the incorporation of dietary fiber from carrot processing discards supports circular economy practices and enhances the health potential of the product.


Assuntos
Daucus carota , Daucus carota/metabolismo , Vitamina E/análise , Frutas/química , Carotenoides/análise , Fibras na Dieta/análise
2.
Anal Methods ; 15(41): 5535-5544, 2023 10 26.
Artigo em Inglês | MEDLINE | ID: mdl-37847399

RESUMO

Accurate detection of vitamins is critically important for clinical diagnosis, metabolomics and epidemiological studies. However, the amounts of different vitamins vary dramatically in human serum. It is a challenge to achieve simultaneous detection of multiple vitamins rapidly. Herein, we developed and validated a sensitive and specific method using ultra high-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) for simultaneous quantification of 7 fat-soluble vitamins (FSVs) across their physiological concentrations in serum for the first time, which was subjected to protein precipitation, liquid-liquid extraction to an organic phase, evaporation to dryness and reconstitution with acetonitrile. In the present procedure, retinol (vitamin A), ergocalciferol (25-OH-D2), cholecalciferol (25-OH-D3), α-tocopherol (vitamin E), phylloquinone (vitamin K1), menatetrenone-4 (MK-4), and menaquinone-7 (MK-7) were detected in one analytical procedure for the first time within 5.0 min by triple quadrupole tandem mass spectrometry. The limit of quantification (LOQ) for vitamin A was 10.0 ng mL-1, LOQs for 25-OH-D2 and 25-OH-D3 were 1.0 ng mL-1, LOQ for vitamin E was 100.0 ng mL-1, and LOQs for vitamin K1, MK-4 and MK-7 were 0.10 ng mL-1, respectively, with a correlation (R2) of 0.995-0.999. Recoveries ranged from 80.5% to 118.5% and the intra-day and inter-day coefficients of variance (CVs) were 0.72-8.89% and 3.2-9.0% respectively. The method was validated according to the European Medicines Agency (EMA) and U.S. Food and Drug guidelines and C62-A on bioanalytical methods, and was used for clinical routine determination.


Assuntos
Vitamina A , Vitamina K 1 , Humanos , Cromatografia Líquida de Alta Pressão/métodos , Vitamina A/análise , Vitamina K 1/análise , Espectrometria de Massas em Tandem/métodos , Cromatografia Líquida/métodos , Vitaminas/análise , Vitaminas/química , Vitamina K/análise , Vitamina E/análise , Calcifediol
3.
Front Endocrinol (Lausanne) ; 14: 1048615, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37810886

RESUMO

Background: Fat-soluble vitamins, including vitamins A, D and E, play an important role in the regulation of glucose and lipid metabolism, and may affect infant birth weight. Evidence on the association of birthweight with fat-soluble vitamins is controversial. Therefore, this study aims is to determine the associations of birthweight with vitamin A, D, and E concentrations in cord blood. Methods: A total of 199 mother-infant pairs were enrolled in the study. According to gestational age and birth weight, the mother-infant pairs were divided into small for gestational age (SGA), appropriate for gestational age (AGA), and large for gestational age (LGA). The Vitamin A, D, and E concentrations in serum were measured by high-performance liquid chromatography tandem-mass spectrometry. Results: The concentrations of vitamin A in the SGA group were significantly lower than those in the AGA and LGA groups. The concentrations of vitamin E in the SGA group were significantly higher than those in the AGA and LGA groups. However, no significant differences were observed in vitamin D among the three groups. Being male (ß = 0.317, p < 0.001) and birth weight (ß = 0.229, p = 0.014) were positively correlated with the levels of vitamin A. Birth weight (ß = -0.213, p= 0.026) was correlated with lower levels of vitamin E. No correlation was found between influencing Factors and the levels of vitamin D (p> 0.05). After adjusting for gestational age, sex, mother's age, delivery mode, pre-pregnancy BMI, and weight gain during pregnancy, the levels of cord blood vitamin A were positively correlated with birth weight (p=0.012). Conclusion: The infant's birth weight is associated with the levels of cord blood vitamins A and E. The dysregulation of vitamins A and E in infants may be a risk factor for fetal growth and future metabolic diseases.


Assuntos
Sangue Fetal , Vitamina A , Gravidez , Feminino , Humanos , Lactente , Masculino , Peso ao Nascer/fisiologia , Sangue Fetal/química , Retardo do Crescimento Fetal , Vitaminas , Vitamina D , Vitamina K/análise , Vitamina E/análise
4.
Sci Rep ; 13(1): 16372, 2023 09 29.
Artigo em Inglês | MEDLINE | ID: mdl-37773271

RESUMO

Green glutinous rice is a unique genetic germplasm that has yet to be adequately studied. This study investigated antioxidant capacity and flavonoid metabolites in the bran layer of green glutinous rice (LvH) compared to purple (HeiH), red (HongH) and white (GJG) varieties. The results showed that LvH bran had significantly higher content of total flavonoids and anthocyanin than that of HongH (1.91-fold and 4.34-fold) and GJG (2.45-fold and 13.30-fold). LvH bran also showed significantly higher levels of vitamin B1 and vitamin E than that of HeiH (1.94-fold and 1.15-fold) and HongH (1.22-fold and 1.13-fold), indicating that green glutinous rice bran was rich in bioactive components. LvH bran showed significantly lower IC50 values for scavenging DPPH and ATBS radicals than GJG and even significantly lower IC50 value for scavenging DPPH radicals than HongH, highlighting its potential as an effective source of antioxidants. LvH bran had significantly different downstream metabolite synthesis in the flavonoid pathway compared to HeiH, HongH, and GJG, with 40, 26, and 22 different metabolites, 23, 20, and 33 up-regulated differentially expressed metabolites (DEMs), and 73, 50, and 13 down-regulated DEMs, respectively. Of the 139 flavonoid metabolites identified in colored rice bran, 26 metabolites showed significant positive correlation with both ABTS and DPPH radical scavenging capacity. Typically, quercetin derivatives showed potential for evaluating the antioxidant capacity of colored rice bran. These findings offer valuable insights into the antioxidant properties of green glutinous rice bran and provide references for better understanding of flavonoid metabolites in different colored rice bran.


Assuntos
Antioxidantes , Oryza , Antioxidantes/química , Flavonoides/química , Oryza/química , Vitamina E/análise , Sementes/química , Extratos Vegetais/química
5.
Molecules ; 28(8)2023 Apr 13.
Artigo em Inglês | MEDLINE | ID: mdl-37110682

RESUMO

A new analytical approach to the simultaneous identification and quantification of vitamins A and E in three representative matrices (Parmesan, spinach, and almonds) was developed. The analyses were based on high-performance liquid chromatography with UV-VIS/DAD detection. The procedure was optimized by a significant reduction in the weight of the tested products and quantities of reagents added during the saponification and extraction stages. A full method validation study was performed for retinol at two concentration levels (LOQ and 200 × LOQ), which showed satisfactory results, with recoveries ranging from 98.8 to 110.1%, and an average CV of 8.9%. Linearity was tested in the range of 1-500 µg/mL and showed the coefficient of determination R2 = 0.999. The satisfactory recovery and precision parameters were achieved for α-tocopherol (LOQ and 500 × LOQ) in the range of 70.6-143.2%, with a mean CV equal to 6.5%. The observed linearity for this analyte in the concentration range of 1.06-532.0 µg/mL was R2 = 0.999. The average extended uncertainties were estimated, using a top-down approach of 15.9% and 17.6% for vitamin E and A, respectively. Finally, the method was successfully applied to determine vitamins in 15 commercial samples.


Assuntos
Vitamina A , Vitaminas , Vitaminas/análise , Vitamina A/análise , Vitamina E/análise , alfa-Tocoferol/análise , Vitamina K/análise , Cromatografia Líquida de Alta Pressão/métodos , Reprodutibilidade dos Testes
6.
J Appl Toxicol ; 43(5): 680-693, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36372912

RESUMO

E-cigarette, or vaping product use-associated lung injury (EVALI), is a severe respiratory disorder that caused a sudden outbreak of hospitalized young people in 2019. Using cannabis oil containing vaping products, including vitamin E acetate contaminants, was found to be strongly associated with EVALI. However, the underlying tissue impacts of the condition are still largely unknown. Here, we focused on the vehicle cannabinoid oil (CBD oil) and contaminant vitamin E acetate (VEA) effects on airway epithelial cells. Primary human bronchial epithelial (HBE) cultures were exposed to e-liquid aerosols that contained CBD oil and VEA in combination or the common e-liquid components PG/VG with and without nicotine. Cell viability analysis indicated dramatically increased cell death counts after 3 days of CBD exposure, and this effect was even higher after CBD + VEA exposure. Microscopic examination of the cultures revealed cannabinoid and VEA depositions on the epithelial surfaces and cannabinoid accumulation in exposed cells, followed by cell death. These observations were supported by proteomic analysis of the cell secretions that exhibited increases in known markers of airway epithelial toxicity, such as xenobiotic enzymes, factors related to oxidative stress response, and cell death indicators. Overall, our study provides insights into the association between cannabinoid oil and vitamin E acetate vaping and lung injury. Collectively, our results suggest that the adherent accumulation of CBD oil on airway surfaces and the cellular uptake of both CBD oil- and VEA-containing condensates cause elevated metabolic stress, leading to increased cell death rates in human airway epithelial cultures.


Assuntos
Canabinoides , Sistemas Eletrônicos de Liberação de Nicotina , Lesão Pulmonar , Vaping , Humanos , Adolescente , Canabinoides/toxicidade , Vaping/efeitos adversos , Lesão Pulmonar/induzido quimicamente , Proteômica , Dronabinol/toxicidade , Aerossóis e Gotículas Respiratórios , Vitamina E/análise , Vitamina E/toxicidade , Epitélio , Acetatos/toxicidade
7.
Molecules ; 27(22)2022 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-36431807

RESUMO

This study aimed to evaluate the effects of peanut varieties cultivated in Morocco (Virginia and Valencia) and extraction methods (cold press, CP; Soxhlet, Sox and maceration, and Mac) on the fatty acid profile, phytosterol, and tocopherol contents, quality characteristics, and antioxidant potential of peanut seed oil. The DPPH method was used to determine the antioxidant activity of the oils. The results revealed that fatty acid content was slightly affected by the extraction technique. However, the CP method was shown to be an excellent approach for extracting oil with desirable quality features compared to the Sox and Mac methods. Furthermore, the peanut oil extracted via CP carried a higher amount of bioactive compounds and exhibited remarkable antioxidant activities. The findings also revealed higher oleic acid levels from the Virginia oil, ranging from 56.46% to 56.99%. Besides, a higher total phytosterol and tocopherol content and DPPH scavenging capacity were obtained from the Valencia oil. Analyzing the study, it can be inferred that extraction method and variety both affect the composition of the peanut oil's bioactive compounds and antioxidant activity. This information is relevant for extracting peanut oil with a greater level of compounds of industrial interest.


Assuntos
Antioxidantes , Fitosteróis , Óleo de Amendoim/química , Antioxidantes/farmacologia , Antioxidantes/análise , Óleos de Plantas/química , Virginia , Tocoferóis/análise , Ácidos Graxos/química , Vitamina E/análise , Valor Nutritivo , Fitosteróis/análise , Arachis
8.
Schweiz Arch Tierheilkd ; 164(9): 625-633, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36047818

RESUMO

INTRODUCTION: Colostrum contains higher amounts of vitamins D3 and E than mature milk. Due to the structural feature of the goat placenta, goat kids are born with very low reserves of fat-soluble vitamins and must rely on colostrum to acquire adequate plasma levels of vitamin D3 and vitamin E. In the present study, vitamin E was measured in the form of α-tocopherol which is the most dominant isoform present in milk samples. The main aim of the present study is to determine the colostrum vitamin D3 and E content in Honamli and hair goats in the early postpartum stage by high-performance liquid chromatography. Five Honamli and five hair goat colostrum samples were collected on the day of kidding and on the third and fifth days postpartum. On the sampled days, the colostrum of both goat breeds contains higher concentrations of vitamin D3 and α-tocopherol than that in mature milk (p< 0,05) and there was the existence of a breed difference in colostrum vitamin D3 and α-tocopherol concentrations (p< 0,05) was determined. Also, the effect of sampling day on colostrum vitamin D3 concentration in samples that were obtained between the first and third days was also significant (p< 0,05). Hair goat colostrum α-tocopherol concentrations were found to be higher than Honamli goats (p< 0,05). Additionally, there was a statistically significant difference between the sampling day and α-tocopherol content on days one and five (p < 0,05).


INTRODUCTION: Le colostrum contient des quantités plus élevées de vitamines D3 et E que le lait. En raison des caractéristiques structurelles du placenta de la chèvre, les chevreaux naissent avec de très faibles réserves de vitamines liposolubles et doivent compter sur le colostrum pour acquérir des niveaux plasmatiques adéquats de vitamine D3 et de vitamine E. Dans la présente étude, la vitamine E a été mesurée sous la forme d'α-tocophérol qui est l'isoforme la plus dominante présente dans les échantillons de lait. L'objectif principal de la présente étude était de déterminer la teneur en vitamines D3 et E du colostrum chez les chèvres Honamli et les chèvres angoras au début du post-partum par chromatographie liquide à haute performance. Cinq échantillons de colostrum de chèvres Honamli et cinq de chèvres angoras ont été collectés le jour de la mise bas et les troisième et cinquième jours du post-partum. Aux jours échantillonnés, le colostrum des deux races de chèvres contenait des concentrations de vitamine D3 et d'α-tocophérol plus élevées que celles du lait (p< 0,05) et l'existence d'une différence entre les races dans les concentrations de vitamine D3 et d'α-tocophérol du colostrum (p< 0,05) a été mesurée. De plus, l'effet du jour d'échantillonnage sur la concentration en vitamine D3 du colostrum dans les échantillons qui ont été obtenus entre le premier et le troisième jour était également significatif (p< 0,05). Les concentrations d'α-tocophérol dans le colostrum des chèvres angoras se sont avérées plus élevées que celles des chèvres Honamli (p< 0,05). En outre, il y avait une différence statistiquement significative entre le jour d'échantillonnage et la teneur en α-tocophérol aux jours un et cinq (p < 0,05).


Assuntos
Colostro , Cabras , Animais , Colecalciferol , Colostro/química , Feminino , Lactação , Leite/química , Período Pós-Parto , Gravidez , Vitamina E/análise , Vitaminas/análise , alfa-Tocoferol/análise
9.
J Appl Genet ; 63(4): 651-662, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35972676

RESUMO

Sweet corn possessing recessive shrunken2 (sh2) gene is popular worldwide. Traditional sweet corn is poor in vitamin A and vitamin E. Plant breeders during the selection of sweet corn genotypes mainly emphasize on plant architecture and yield. Seed germination and seedling vigour play important role for early establishment in field, thereby increasing yield and income. Here, we analysed a set of 15 sh2-based biofortified sweet corn inbreds with crtRB1 (ß-carotene hydroxylase1) and vte4 (γ-tocopherol methyltransferase) genes and three traditional sh2-based sweet corn inbreds for nutritional quality, seed vigour and various physico-biochemical traits. The newly developed inbreds possessed significantly higher provitamin A (proA: 15.60 µg/g) and vitamin E [α-tocopherol (α-T): 20.42 µg/g] than the traditional sweet corn inbreds (proA: 2.51 µg/g, α-T: 11.16 µg/g). The biofortified sweet corn inbreds showed wide variation for germination (80.67-87.33%), vigour index-I (2097.17-2925.28 cm), vigour index-II (134.27-216.19 mg) and electrical conductivity (10.19-13.21 µS cm-1 g-1). Wide variation was also observed for dehydrogenase (1.29-1.59 OD g-1 ml-1), super oxide dismutase (4.01-9.82 g-1), peroxidase (11.66-16.47 µM min-1 g-1), esterase (22.98-34.76 nM min-1 g-1) and α-amylase (5.91-8.15 OD g-1 ml-1). Enrichment of proA and vitamin E in sweet corn did not affect seed vigour and physico-biochemical traits. Correlation analysis revealed that electrical conductivity and α-amylase activity was the reliable indicator for assessing seed germination and vigour. The study identified superior biofortified sweet corn genotypes that would contribute to better vigour and establishment in field. This is the first report of analysis of biofortified sweet corn genotypes for seed vigour and physico-biochemical traits.


Assuntos
Sementes , Zea mays , Zea mays/genética , Sementes/genética , Sementes/química , Germinação , Vitamina E/análise , alfa-Amilases/análise
10.
J Sci Food Agric ; 102(14): 6340-6348, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35527679

RESUMO

BACKGROUND: Local leafy vegetables are gaining attention as affordable sources of micronutrients, including vitamins, pro-vitamin carotenoids and other bioactive compounds. Stinging nettles (Urtica spp.) are used as source of fibers, herbal medicine and food. However, despite the relatively wide geographical spread of Urtica leptophylla on the American continent, little is known about its content of vitamin E congeners and carotenoids. We therefore investigated the particular nutritional potential of different plant structures of wild Costa Rican U. leptophylla by focusing on their vitamin E and carotenoid profiles. RESULTS: Young, mature and herbivore-damaged leaves, flowers, stems and petioles were collected and freeze-dried. Vitamin E and carotenoids were determined by high-performance liquid chromatography after liquid/liquid extraction with hexane. α-Tocopherol was the major vitamin E congener in all structures. Flowers had a high content of γ-tocopherol. Herbivore-damaged leaves had higher contents of vitamin E than undamaged leaves. Lutein was the major and ß-carotene the second most abundant carotenoid in U. leptophylla. No differences in carotenoid profiles were observed between damaged and undamaged leaves. CONCLUSION: The leaves of U. leptophylla had the highest nutritional value of all analyzed structures; therefore, they might represent a potential source of α-tocopherol, lutein and ß-carotene. © 2022 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.


Assuntos
Urtica dioica , Vitamina E , Carotenoides/análise , Costa Rica , Flores/química , Hexanos , Luteína/análise , Vitamina E/análise , Vitaminas/análise , alfa-Tocoferol/análise , beta Caroteno/análise , gama-Tocoferol/análise
11.
J Sep Sci ; 45(10): 1797-1805, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35247931

RESUMO

A supercritical fluid chromatography with electrochemical detection system was developed for the simultaneous determination of tocopherol and tocotrienol isomers. The supercritical fluid chromatography with electrochemical detection system was connected with an additional pump to create a flow path to add a supporting electrolyte solution. The supporting electrolyte solution was mixed with a mobile phase in a post-column fashion, enabling the independent control of the separation and detection. After optimization of the measurement conditions, vitamin E isomers and an internal standard substance (2,2,5,7,8-pentamethyl-6-hydroxychroman) were separated within 30 min using a mixture of supercritical carbon dioxide and methanol (99:1, v/v) as a mobile phase and a cyanopropyl column (4.6 mm inner diameter × 250 mm length, 5 µm). For the electrochemical detection, methanol containing 1.0 mol/L ammonium acetate was used as a supporting electrolyte solution, and the applied potential was set at +0.8 V. This analytical method showed good linearity (5-100 µg/mL) and repeatability (less than 2.5% relative standard deviation, n = 6) and was applicable to the determination of tocopherol and tocotrienol isomers in nutrition supplements.


Assuntos
Cromatografia com Fluido Supercrítico , Tocotrienóis , Cromatografia Líquida de Alta Pressão/métodos , Cromatografia com Fluido Supercrítico/métodos , Eletrólitos , Metanol , Tocoferóis , Tocotrienóis/análise , Vitamina E/análise
12.
J Oleo Sci ; 71(2): 177-185, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35110462

RESUMO

Phosphoric acid is used in the refining of palm oil for the removal of phosphatides. The high concentration of phosphorus in solvent extracted palm-pressed mesocarp fiber oil hinders palm oil mills to recover this phytonutrients-rich residual oil in pressed fiber which typically contains 0.1 to 0.2% of total oil yield. This study aimed to refine the palm-pressed mesocarp fiber oil and determine the optimum dosage of phosphoric acid for acid-degumming of palm-pressed mesocarp fiber oil while retaining its phytonutrients. The refining process was carried out with combination of wet degumming, acid degumming, neutralisation, bleaching and deodorization. The optimum dose of phosphoric acid was identified as 0.05 wt.% by incorporating the wet degumming process. The refined palm-pressed mesocarp fiber oil showed a reduction in phosphorus content by 97% (from 901 ppm to 20 ppm) and 97% free fatty acid content removal (from 6.36% to 0.17%), while the Deterioration of Bleachability Index increased from 1.76 to 2.48, which showed an increment of 41%. The refined oil retained the key phytonutrients such as carotenoids (1,150 ppm) and vitamin E (1,540 ppm) that can be further developed into high-value products. The oil meets the quality specification of refined, bleached, and deodorized palm oil while preserving the heat-sensitive phytonutrients, which in turn provides a new resource of nutritious oil.


Assuntos
Manipulação de Alimentos/métodos , Extração Líquido-Líquido/métodos , Óleo de Palmeira/química , Fosfolipídeos/isolamento & purificação , Fósforo/isolamento & purificação , Compostos Fitoquímicos/análise , Carotenoides/análise , Qualidade dos Alimentos , Óleo de Palmeira/análise , Fosfolipídeos/análise , Ácidos Fosfóricos/química , Fósforo/análise , Solventes , Vitamina E/análise
13.
J Oleo Sci ; 71(1): 57-66, 2022 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-34880148

RESUMO

Storage is an important step after peanut harvest and drying. Many factors could affect the peanut quality during storage. The quality change differences of peanut after being dried by solar radiation and at 35°C, 40°C, 45°C, 50°C during later storage were investigated, including moisture content (MC) and germination percentage (GP) of peanut kernels, acid value (AV), peroxide value (PV), iodine value (IV), vitamin E (VE) content and fatty acid composition (FAC) of extracted peanut oil. And the impact of four storage conditions, air-room temperature (A-RT), air-low temperature (A-LT), vacuum-room temperature (V-RT) and nitrogen-room temperature (N-RT) on peanut quality after 10 months' storage were also studied in this paper. The results revealed that drying conditions had only a little influence on peanut quality during later storage. Peanut dried by solar radiation was more easily oxidized than that dried under other drying conditions. The effects of storage time were much greater. The GP, AV, PV, VE content and FAC, showed significantly changes along with storage. GP and VE content decreased, AV and PV increased, and some linoleic acid was oxidized to oleic acid after 10 months' storage. In addition, A-LT exhibited best performance in keeping peanut quality than A-RT, V-RT and N-RT, which demonstrated that low temperature was more advantageous for peanut storage than controlled atmosphere. These results above would provide useful information and reference for the peanut storage to apply in food industry.


Assuntos
Arachis/química , Dessecação/métodos , Manipulação de Alimentos/métodos , Qualidade dos Alimentos , Armazenamento de Alimentos/métodos , Óleo de Amendoim/química , Luz Solar , Temperatura , Ácidos/análise , Arachis/anatomia & histologia , Arachis/fisiologia , Ácidos Graxos/análise , Indústria Alimentícia , Germinação , Iodo/análise , Óleo de Amendoim/análise , Peróxidos/análise , Vitamina E/análise , Água/análise
14.
J Oleo Sci ; 71(1): 51-55, 2022 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-34880149

RESUMO

Vitamin E (VitE) production from crude palm oil (CPO) has been extensively studied and industrially conducted. VitE in CPO is in the range of 600 to 1,000 ppm, and is usually produced from one of the main by-products of edible palm oil production, namely palm fatty acid distillate (PFAD). PFAD contains 4,000 to 5,500 ppm of VitE, and is produced from deodorization process of palm oil purification. This paper presents an innovative process of VitE concentrate production from CPO. A scrubber was designed and installed between the deodorizer and conventional PFAD scrubber. The main objective of this new scrubber was a recovery of glycerides from PFAD. This new scrubber is operated at 150 to 160℃. The scrubbed oil is named as Scrubbed Palm Fatty Acid Distillate (S-PFAD). This simple and efficient modified process can retrieve glycerides as S-PFAD at 0.3% recovery and it enhances VitE concentration in S-PFAD to the range of 28,000 to 32,000 ppm, which is the highest concentration of VitE that has ever been produced in the palm oil production. Fatty acids and glycerides in S-PFAD were esterified and transesterified to methyl esters. The methyl esters were evaporated from S-PFAD, and S-PFAD residue oil contained 24.7% VitE.


Assuntos
Manipulação de Alimentos/métodos , Óleo de Palmeira/química , Vitamina E/isolamento & purificação , Esterificação , Ésteres/química , Glicerídeos/isolamento & purificação , Temperatura Alta , Óleo de Palmeira/análise , Vitamina E/análise
15.
J Anal Toxicol ; 46(7): 750-756, 2022 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-34666345

RESUMO

Studies have suggested that vitamin E acetate (VEA), when used in an electronic vaping device, undergoes thermal degradation and is considered one of the main contributors in e-cigarette or vaping product use-associated lung injury (EVALI). Using a Borgwaldt 5.1 linear smoker, a SVS250 Electronic Vaporizer and two types of tank systems, VEA was analyzed for degradation products produced via the Cooperation Centre for Scientific Research Relative to Tobacco method 81 when the filter containing vaporized VEA was extracted using acetonitrile. Two of the major products identified were 2,3,5,6-tetramethyl-1,4-benzoquinone and 2,6,10,14-tetramethyl-1-pentadecene, which were confirmed using analytical standards and gas chromatography-high-resolution mass spectrometry (GC-HRMS). Additional synthesis of 4-acetoxy-2,3,5,6-tetramethyl-2,4-cyclohexadienone and subsequent characterization using nuclear magnetic resonance and GC-HRMS suggested that this is not one of the products produced. Identification of these degradants will allow future studies to quantify and examine the degradants in vivo and in vitro as biomarkers for exposure and toxicity assessment.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Vaping , Acetatos , Dronabinol , Vaping/efeitos adversos , Vitamina E/análise , Vitamina E/química , Vitamina E/toxicidade
16.
J Oleo Sci ; 70(11): 1551-1563, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34732634

RESUMO

Rice bran oil (RBO) has been demonstrated to affect complex malfunctioned conditions such as oxidative stress, hyperlipidemia, hyperglycemia, hypertension, inflammation, abnormal cell growth (cancer), ulceration, immune and cognitive modulation. This unique effect of RBO is due to the presence of well-balanced fatty acid composition and several bioactive compounds, γ- oryzanol (cycloartenyl ferulate, 24-methylenecycloartanyl ferulate, campesterol ferulate, and ß-sitosteryl ferulate), vitamin E (tocopherol and tocotrienol), phytosterols (ß-sitosterol, campesterol and stigmasterol) and other nutrients. The RBO composition of bioactive compounds varied geographically, thus the clear-cut mechanisms of action on complex disease cascades are still required. This review article summarized the RBO compositional profiling and compared it with other edible oils. This article also summarized Bangladesh RBO profiling and their proposed mechanism of action as well as the first line of defense in the prevention, management, and control of complex disease conditions. This review indicates how Bangladesh RBO increase their opportunity to be functional food for 21st century's ailment.


Assuntos
Análise de Alimentos , Alimento Funcional , Óleo de Farelo de Arroz/análise , Óleo de Farelo de Arroz/química , Anti-Inflamatórios , Bangladesh , Ácidos Graxos/análise , Hiperglicemia/prevenção & controle , Hiperlipidemias/prevenção & controle , Hipertensão/prevenção & controle , Estresse Oxidativo/efeitos dos fármacos , Fenilpropionatos/análise , Compostos Fitoquímicos/análise , Fitosteróis/análise , Óleo de Farelo de Arroz/farmacologia , Vitamina E/análise
17.
J Oleo Sci ; 70(9): 1201-1210, 2021 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-34373407

RESUMO

This review is aimed to provide a comprehensive overview of the physicochemical properties and extraction processes of red palm oil, its nutritional properties and applications in food. Crude palm oil is firstly extracted from the fruit mesocarp and processed into red palm oil using pre-treatment of crude palm oil, with deacidification steps, and deodorization via short-path distillation. These processes help to retain ß-carotene and vitamin E in red palm oil. Palmitic, stearic and myristic acids are the saturated fatty acids in red palm oil, while the unsaturated fatty acids are oleic, linoleic and linolenic acids. It is reported to overcome vitamin A deficiency, promote heart health and have anti-cancer properties.


Assuntos
Manipulação de Alimentos/métodos , Óleo de Palmeira , Antineoplásicos Fitogênicos , Doenças Cardiovasculares/prevenção & controle , Fenômenos Químicos , Ácidos Graxos/análise , Ácidos Graxos Insaturados/análise , Humanos , Extração Líquido-Líquido/métodos , Valor Nutritivo , Óleo de Palmeira/química , Óleo de Palmeira/isolamento & purificação , Óleo de Palmeira/farmacologia , Óleo de Palmeira/uso terapêutico , Deficiência de Vitamina A/terapia , Vitamina E/análise , beta Caroteno/análise
18.
Nutrients ; 13(5)2021 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-34065253

RESUMO

Dietary habits are of considerable interest as a modifiable factor for the maintenance of muscle health, especially sarcopenia. The present study aimed to investigate the association between dietary intake and sarcopenia prevalence in community-dwelling Japanese subjects. This cross-sectional study was conducted using data from the fifth survey of the Research on Osteoarthritis/Osteoporosis against Disability (ROAD) study, and 1345 participants (437 men and 908 women) aged ≥60 years were included in the analysis. Sarcopenia was determined by the definition of the Asian Working Group for Sarcopenia established in 2014, and dietary intake was assessed with the brief-type self-administered diet history questionnaire. Overall, 77 subjects (5.7%) were identified as having sarcopenia, 5.0% of men and 6.1% of women. Multiple logistic regression analysis showed that the odds ratios of sarcopenia for the dietary intake of vitamin E (α-tocopherol, 0.14 (CI 0.04-0.49), ß-tocopherol (0.24, CI 0.07-0.78), γ-tocopherol (0.28, CI 0.09-0.87), and fats (fat 0.27, CI 0.08-0.96; monounsaturated fatty acids, 0.22, CI 0.07-0.72, polyunsaturated fatty acids, 0.28, CI 0.09-0.89) at the highest quantile were significantly lower compared with those at the lowest quantile. Therefore, higher dietary intakes of vitamin E and fats would be associated with a lower prevalence of sarcopenia.


Assuntos
Dieta/estatística & dados numéricos , Gorduras na Dieta/análise , Ingestão de Alimentos/fisiologia , Sarcopenia/epidemiologia , Vitamina E/análise , Idoso , Estudos Transversais , Dieta/efeitos adversos , Fenômenos Fisiológicos da Nutrição do Idoso , Comportamento Alimentar/fisiologia , Feminino , Humanos , Vida Independente/estatística & dados numéricos , Japão/epidemiologia , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Prevalência , Sarcopenia/etiologia , Inquéritos e Questionários
19.
Molecules ; 26(11)2021 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-34073383

RESUMO

The European food legislation authorizes the use of certain health claims based on a scientific basis. This study aimed to evaluate the fatty acid, tocopherol, and polar phenol composition of virgin olive oil (VOO) from cv. Chondrolia Chalkidikis and Chalkidiki regarding the fulfillment of official requirements for the health claims of 'oleic acid', 'vitamin E', and 'olive oil polyphenols'. The examination of representative industrial VOOs from 15 olive mills of the Chalkidiki regional unit showed that the two cultivars yield oils contained the necessary concentrations of the responsible bioactive compounds. This evidence was further substantiated by a four harvest study whereby olives from different maturity stages were sampled from three olive groves. Oils were extracted at a laboratory scale and examined for their content in the above-mentioned three categories of constituents. Oils produced at industrial scale from olives harvested on the 'technological optimum' stage according to the olive grove proprietor were also analyzed. Extra virgin olive oil of the studied cultivars can safely bear the generic claims for 'oleic acid' and 'vitamin E'. The cultivars present great potential regarding the total hydroxytyrosol and tyrosol content of the extracted oil required to attain the third health claim that may be influenced negatively by manufacturing practices.


Assuntos
Análise de Alimentos/métodos , Política Nutricional , Azeite de Oliva/análise , Cromatografia Líquida de Alta Pressão , Colorimetria , Europa (Continente) , Ácidos Graxos , Grécia , Olea , Ácido Oleico , Fenol/análise , Álcool Feniletílico/análogos & derivados , Álcool Feniletílico/química , Espectrofotometria Ultravioleta , Temperatura , Tocoferóis , Vitamina E/análise , alfa-Tocoferol/análise
20.
Molecules ; 26(6)2021 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-33801934

RESUMO

Yogurt is a nutritious food that is regularly consumed in many countries around the world and is widely appreciated for its organoleptic properties. Despite its contribution to human dietary requirements, yogurt in its traditional recipe is a poor source of fat-soluble vitamins. To respond to consumer demands and further increase the nutritional value of this product, this work aimed to fortify yogurt with vitamin E by using emulsification as the method of encapsulation. The effects of thermal processing and chilled storage on the physicochemical stability of the yogurt-based beverage was investigated. Vitamin E was only minorly affected by bulk pasteurization at 63 °C for 30 min and remained stable during storage at 4 °C for 28 days. Fortified samples showed increased in vitro antioxidant activity compared with non-fortified samples. Lactic acid bacterial counts were above the minimum recommended levels (>106 cfu/g) after processing and storage. In conclusion, this work has demonstrated that emulsification can be an effective strategy for developing yogurt-based products fortified with fat soluble vitamins.


Assuntos
Encapsulamento de Células/métodos , Vitamina E/análise , Iogurte/análise , Animais , Técnicas de Cultura Celular por Lotes/métodos , Bebidas , Emulsões/química , Emulsões/farmacologia , Fermentação , Manipulação de Alimentos , Alimentos Fortificados/análise , Leite/química , Pasteurização/métodos , Vitamina E/química
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