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1.
Food Chem ; 445: 138801, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38387316

RESUMO

Frog skin, a by-product of Quasipaa Spinosa farming, is rich in protein and potentially a valuable raw material for obtaining antioxidant peptides. This study used papain combined with acid protease to digest frog skin in a two-step enzymatic hydrolysis method. Based on a single factor and response surface experiments, experimental conditions were optimized, and the degree of hydrolysis was 30 %. A frog skin hydrolysate (QSPH-Ⅰ-3) was obtained following ultrafiltration and gel filtration chromatography. IC50 for DPPH, ABTS, and hydroxyl radical scavenging capacities were 1.68 ± 0.05, 1.20 ± 0.14 and 1.55 ± 0.11 mg/mL, respectively. Peptide sequences (17) were analyzed and, through molecular docking, peptides with low binding energies for KEAP1 were identified, which might affect the NRF2-KEAP1 pathway. These findings suggest protein hydrolysates and antioxidant peptide derivatives might be used in functional foods.


Assuntos
Antioxidantes , Sequestradores de Radicais Livres , Antioxidantes/química , Hidrólise , Proteína 1 Associada a ECH Semelhante a Kelch , Sequestradores de Radicais Livres/química , Simulação de Acoplamento Molecular , Fator 2 Relacionado a NF-E2 , Peptídeos/química , Hidrolisados de Proteína/química
2.
J Oleo Sci ; 73(2): 239-251, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38311413

RESUMO

Frog oil has been recognized for its nutritional and medicinal value. However, there is limited research on the role of frog oil in preventing obesity. In this study, we aimed to investigate the lipid composition of Quasipaa spinosa oil (QSO) and Rana catesbeiana oil (RCO) using lipidomics analysis. We compared the lipid accumulation effects of these two kinds of frog oils and soybean oil (SO) in Caenorhabditis elegans (C. elegans). Additionally, we determined the gene expression related to lipid metabolism and used the nhr-49 mutant (RB1716) and sir-2.1 mutant (VC199) for validation experiments. The results showed that the lipid composition of QSO and RCO was significantly different (p < 0.05), and QSO was rich in more polyunsaturated fatty acids (PUFAs). After feeding C. elegans, the lipid accumulation of the QSO group was the lowest among the three dietary oil groups. In addition, compared with RCO and SO, QSO significantly inhibited the production of malondialdehyde (MDA) and increased the activity of superoxide dismutase (SOD). The effects of three kinds of dietary oils on the fatty acid composition of C. elegans were significantly different. Compared with SO and RCO, QSO significantly up-regulated (p < 0.05) the expression of sir-2.1 and ech-1 genes. The results showed that QSO might reduce lipid accumulation through the SIRT1 and nuclear hormone signaling pathways. Such a situation was verified experimentally by the nhr-49 mutant (RB1716) and sir-2.1 mutant (VC199). This study proposed a new functional oil, laying the groundwork for developing functional foods from Quasipaa spinosa.


Assuntos
Caenorhabditis elegans , Gorduras Insaturadas na Dieta , Animais , Caenorhabditis elegans/genética , Caenorhabditis elegans/metabolismo , Rana catesbeiana/metabolismo , Ácidos Graxos/metabolismo , Ácidos Graxos Insaturados/metabolismo , Gorduras Insaturadas na Dieta/farmacologia , Óleo de Soja/metabolismo , Metabolismo dos Lipídeos/genética
3.
Food Funct ; 15(3): 1158-1169, 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38239106

RESUMO

In recent years, as a functional potential pseudocereal, chia seed (Salvia hispanica L.) has been of great interest for its comprehensive nutritional profile and attractive qualities after ingestion. It is reported that a reasonable dietary supplementation of chia seed (CS) contributes to the prevention and treatment of acute and chronic diseases (inflammation, diabetes, hypertension, obesity, kidney stone, etc.). CS contains a variety of bioactive macromolecular substances, such as oil, protein and gum, which manifest distinguished health-promoting activities in both in vivo and in vitro research studies. This article provides a comprehensive compendium on the functional importance of CS, in the context of biological activities and mechanism of actions of CS. Specifically, CS and its components alleviate inflammation and regulate glucose and fatty acid metabolism by regulating key influencing factors in the adenosine 5'-monophosphate-activated protein kinase (AMPK), mitogen-activated protein kinases (MAPK), nuclear factor kappa B (NF-κB), peroxisome-activated receptor gamma (PPAR-γ) and transforming growth factor-beta (TGF-ß) pathways and the insulin receptor substrate (IRS)-mediated insulin signaling pathway. In the meantime, predictions of metabolic pathways of CS peptides based on the known tracks of newly researched active peptides were proposed, with the aim of emphasizing the enormous research space of CS peptides compared to other functional active peptides.


Assuntos
Obesidade , Salvia hispanica , Salvia , Humanos , Obesidade/tratamento farmacológico , Obesidade/metabolismo , Extratos Vegetais/metabolismo , Insulina/metabolismo , Inflamação/metabolismo , Sementes/química , Salvia/química
4.
Foods ; 12(6)2023 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-36981177

RESUMO

Idesia polycarpa pulp oil (IPPO) has the potential to become the new high-quality vegetable oil. The chemical parameters, fatty acid composition, bioactive ingredients, and antioxidant capacity of five Chinese regions of IPPO were studied comparatively, with significant differences among the regions. The oils were all abundant in unsaturated fatty acids, including linoleic acid (63.07 ± 0.03%-70.69 ± 0.02%), oleic acid (5.20 ± 0.01%-7.49 ± 0.03%), palmitoleic acid (4.31 ± 0.01%-8.19 ± 0.01%) and linolenic acid (0.84 ± 0.03%-1.34 ± 0.01%). IPPO is also rich in active substances such as tocopherols (595.05 ± 11.81-1490.20 ± 20.84 mg/kg), which are made up of α, ß, γ and δ isomers, ß-sitosterol (1539.83 ± 52.41-2498.17 ± 26.05 mg/kg) and polyphenols (106.77 ± 0.86-266.50 ± 2.04 mg GAE/kg oil). The free radical scavenging capacity of IPPO varies significantly depending on the region. This study may provide important guidance for the selection of Idesia polycarpa and offer insights into the industrial application of IPPO in China.

5.
Molecules ; 28(2)2023 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-36677730

RESUMO

In recent years, as the demand for precision nutrition is continuously increasing, scientific studies have shown that high-purity eicosapentaenoic acid ethyl ester (EPA-EE) functions more efficiently than mixed omega-3 polyunsaturated fatty acid preparations in diseases such as hyperlipidemia, heart disease, major depression, and heart disease; therefore, the market demand for EPA-EE is growing by the day. In this paper, we attempt to review EPA-EE from a whole-manufacturing-chain perspective. First, the extraction, refining, and ethanolysis processes (fish oil and ethanol undergo transesterification) of EPA-EE are described, emphasizing the potential of green substitute technologies. Then, the method of EPA enrichment is thoroughly detailed, the pros and cons of different methods are compared, and current developments in monomer production techniques are addressed. Finally, a summary of current advanced strategies for dealing with the low oxidative stability and low bioavailability of EPA-EE is presented. In conclusion, understanding the entire production process of EPA-EE will enable us to govern each step from a macro perspective and accomplish the best use of EPA-EE in a more cost-effective and environmentally friendly way.


Assuntos
Ácidos Graxos Ômega-3 , Cardiopatias , Humanos , Óleos de Peixe , Ácidos Docosa-Hexaenoicos , Ácido Eicosapentaenoico
6.
Food Res Int ; 161: 111843, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36192973

RESUMO

Olive oil is one of the most important ingredients in the Mediterranean diet, in which its polyphenols adversely affect dietary lipid oxidation. In this study, the effect of olive oil polyphenols on lipid oxidation of high-fat beef during digestion was determined. Thirty-three phenolic compounds were tentatively identified, and the contents of 3,4-dihydroxyphenylethanol-elenolic acid dialdehyde (3,4-DHPEA-EDA), 3,4-dihydroxyphenylethanol-elenolic acid (3,4-DHPEA-EA), p-hydroxyphenylethanol elenolic acid (p-HPEA-EA) and hydroxytyrosol were higher than those of other compounds. In an in vitro model, the production of lipid oxidation products, including hydroperoxides, malondialdehyde, 4-hydroxy-2-hexenal and 4-hydroxy-2-nominal, were significantly inhibited by olive polyphenol in the gastrointestinal digests. Compared with the other four groups, the inhibition was better when the polyphenol content reached 600 mg GAE/kg. The 3,4-DHPEA-EDA and 3,4-DHPEA-EA played a better antioxidant role in the stomach stage, while hydroxytyrosol showed the more potent antioxidant activity in the intestinal phase. Electron spin resonance technology showed that two main free radicals, including alkyl radical and alkoxy radical, were detected during the high-fat beef digestion, and olive polyphenols could significantly reduce their formation. All these results showed that the lipid oxidation could be significantly inhibited by olive oil with higher polyphenol content, indicating that the consumption of olive oil with abundant levels of polyphenols could reduce lipid oxidation of high-fat meat during digestion.


Assuntos
Olea , Polifenóis , Animais , Antioxidantes/farmacologia , Bovinos , Digestão , Malondialdeído , Azeite de Oliva , Fenóis , Álcool Feniletílico/análogos & derivados , Óleos de Plantas/farmacologia , Polifenóis/farmacologia , Piranos
7.
Front Nutr ; 9: 901342, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35928834

RESUMO

Anthocyanins (ACNs) are plant polyphenols that have received increased attention recently mainly due to their potential health benefits and applications as functional food ingredients. This has also created an interest in the development and validation of several non-destructive techniques of ACN assessments in several food samples. Non-destructive and conventional techniques play an important role in the assessment of ACNs in agricultural and food products. Although conventional methods appear to be more accurate and specific in their analysis, they are also associated with higher costs, the destruction of samples, time-consuming, and require specialized laboratory equipment. In this review article, we present the latest findings relating to the use of several spectroscopic techniques (fluorescence, Raman, Nuclear magnetic resonance spectroscopy, Fourier-transform infrared spectroscopy, and near-infrared spectroscopy), hyperspectral imaging, chemometric-based machine learning, and artificial intelligence applications for assessing the ACN content in agricultural and food products. Furthermore, we also propose technical and future advancements of the established techniques with the need for further developments and technique amalgamations.

8.
Food Res Int ; 159: 111643, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35940816

RESUMO

Trichosanthes kirilowii Maxim seed is a primary source of edible vegetable oil and possesses a high nutritional value, making them extremely beneficial to humanity. To promote the extraction process of Trichosanthes kirilowii Maxim seed oil, the effect of microwave heating time (700 W for 0, 2, 4, and 6 min) on lipid composition, chemical properties, and antioxidant activity of oils was studied. The results showed that the oil yield of the seed increased with the microwave heating time. Besides, microwave heating time significantly affects (p < 0.05) DPPH and tocopherols, and the IC50 value of DPPH was highest with microwave heating for 6 min, whatever the shells are reserved. The tocopherol content was highest with microwave heating for 2 min in the seed shell oil, which was 1930.60 mg/kg. The longer microwave heating time could improve the oil yield and antioxidant activity of Trichosanthes kirilowii Maxim seed oil. The seed shell also affects chemical properties, fatty acid composition, antioxidant activity, and tocopherol contents of the Trichosanthes kirilowii Maxim seed oil. The Trichosanthes kirilowii Maxim seed shell oil has higher DPPH and tocopherols contents than seed kernel oil, while seed kernel oils showed higher oil yield and acid value. Our finding is valuable for manufacturers to choose suitable means to produce Trichosanthes kirilowii Maxim seed oil of required qualities and chemical compositions for targeted use.


Assuntos
Trichosanthes , Antioxidantes/análise , Calefação , Micro-Ondas , Óleos de Plantas/análise , Sementes/química , Tocoferóis/análise , Trichosanthes/química
9.
Molecules ; 27(12)2022 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-35745026

RESUMO

In this study, the volatile compound profiles of gurum seed oil were determined using two methods: supercritical CO2 extraction (SFE) and the screw press process (SPP). For volatile compounds extraction and identification, headspace solid-phase micro-extraction (HS-SPME) and GC-MS were used, respectively. A total number of 56 volatile compounds were revealed and identified in oil extracted by SFE, while only 40 compounds were detected in extracted oil by SPP. Acids, aldehydes, esters, ketones, furans, and other components were present in the highest ratio in oil extracted by SFE. In contrast, alcohols and alkenes were found in the highest proportion in oil extracted by SPP. In this study, it was observed that SFE showed an increase in the amounts of volatile compounds and favorably impacted the aroma of gurum seed oil. The results reveal that different extraction methods significantly impact the volatile components of gurum seed oil, and this study can help evaluate the quality of the oil extracted from gurum seeds.


Assuntos
Microextração em Fase Sólida , Compostos Orgânicos Voláteis , Ésteres/análise , Cromatografia Gasosa-Espectrometria de Massas/métodos , Óleos de Plantas , Sementes/química , Microextração em Fase Sólida/métodos , Compostos Orgânicos Voláteis/análise
10.
J Food Biochem ; 46(8): e14180, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35396857

RESUMO

Non-alcoholic fatty liver disease (NAFLD) can be attributed to the imbalance between lipogenesis and lipidolysis in the liver. Sesame lignans (sesamin, sesamolin, and sesamol) are unique bioactive compounds responsible for the nutritional function of sesame oils. However, the preventive effects of three lignans on oxidative stress and lipid metabolism in steatosis HepG2 cells have not been compared. In this study, we investigated the role of sesamin, sesamolin, and sesamol on hepatic lipid accumulation and explored the underlying mechanism via a well-established cell model. The results showed that 3 µg/ml of lignans could decrease the TG/TC contents and alleviate cellular oxidative stress, with an order of the lipid-lowering effect as sesamol > sesamin > sesamolin. The lignan-activated AMPK and PPAR signaling pathways enhanced gene and protein expressions related to fatty acid oxidation, cholesterol efflux, and catabolism. Meanwhile, treatment of the steatosis HepG2 cells with sesamin, sesamolin, and sesamol reduced lipid synthesis and cholesterol uptake, thus lowering intracellular lipogenesis in the process of NAFLD. Our data suggested that sesame lignans can attenuate oxidative stress and regulate lipid metabolism in liver cells, which may be potential therapeutic agents for treating the NAFLD. PRACTICAL APPLICATIONS: The present work demonstrated that sesame lignans can be used for dietary supplements or functional additives with excellent lipid-lowering effects. Furthermore, this study supplied potential molecular mechanisms involved in NAFLD treatment process, and also provided nutritional guidelines for sesame oil evaluation and selection.


Assuntos
Lignanas , Hepatopatia Gordurosa não Alcoólica , Sesamum , Benzodioxóis , Colesterol , Dioxóis , Células Hep G2 , Humanos , Lignanas/metabolismo , Lignanas/farmacologia , Lignanas/uso terapêutico , Metabolismo dos Lipídeos , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Estresse Oxidativo , Fenóis , Óleo de Gergelim/análise , Óleo de Gergelim/farmacologia , Sesamum/metabolismo
11.
Food Chem ; 372: 131143, 2022 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-34601419

RESUMO

The frying process is an excellent way to obtain food with desirable sensory. However, some harmful substances, such as aldehydes and monoepoxy oleic acids, could also be produced. This study mainly explores the inhibition of polyphenols from the Camellia oleifera seed cake extract (CSCE) on the formation of polar compounds, core aldehydes, and monoepoxy oleic acids during deep-fat frying. The results showed that the CSCE could significantly decrease peroxide, p-anisidine, total polar, and monoepoxy oleic acids compared with other groups. In addition, the CSCE could significantly inhibit the generation of oxidized triacylglycerol polymer (TGP) and oxidized triacylglycerol (ox-TG), indicating its anti-polymerization activity. The total amount of core aldehydes and glycerol ester core aldehydes (9-oxo) in soybean oil was significantly reduced. Furthermore, CSCE had a better inhibitory effect on monoepoxy fatty acids than TBHQ. Our results might be helpful to provide a basis for the search for new natural antioxidants.


Assuntos
Camellia , Aldeídos , Temperatura Alta , Ácidos Oleicos , Extratos Vegetais , Óleos de Plantas , Sementes
12.
Food Chem ; 371: 131167, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-34649199

RESUMO

Beef tallow (BT) is the common hotpot oil used in Sichuan hotpot, increasing its characteristic flavors and making it taste better. However, the cholesterol content in BT is high, which may induce cardiovascular diseases. In this study, the effect of palm stearin (PS) on Sichuan hotpot oil was evaluated. The PS: BT blends showed similar physicochemical properties to BT from the results of sensory evaluation, pulsed NMR, DSC, and polar light micrograph (PLM). Furthermore, since spiciness is the essential characteristic of Sichuan hotpot, the digestive properties of capsaicinoids in hotpot oil were used as an evaluation index. The results showed that the digestive properties of capsaicinoids in hotpot oil containing PS were consistent with those without PS. In conclusion, PS can be partially used to replace BT, which can broaden the types of oil used for hotpot and help develop a new hotpot oil.


Assuntos
Ácidos Graxos Monoinsaturados , Óleos de Plantas , Animais , Bovinos , Digestão , Óleo de Palmeira
13.
J Food Biochem ; 45(11): e13976, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34664288

RESUMO

Non-alcoholic fatty liver disease (NAFLD) is a chronic hepatopathy caused by disordered lipid metabolism in the liver. Sesamol, a phenolic compound derived from sesame oil, has been shown to inhibit obesity, hyperlipidemia, and atherosclerosis in previous investigations. However, the preventive effect of sesamol against hepatic steatosis and oxidative stress in NAFLD has not been well-studied. In this work, sesamol was observed to alleviate lipid accumulation and oxidative stress in high oleic acid (300 µM)/cholesterol (25 µM) induced HepG2 cells, thus indicating that sesamol was involved in regulating hepatic lipid metabolism and oxidative injury. Mechanism studies found that the activated peroxisome proliferator-activated receptors (PPAR) signaling pathway by sesamol intervention up-regulated gene and protein expressions related to fatty acid oxidation and cholesterol efflux and catabolism, thus accelerating lipid consumption and reducing intracellular lipid accumulation in the process of NAFLD. These data suggested that sesamol can effectively ameliorate hepatic steatosis and sesamol riched sesamol oil may be a potential agent for finding therapeutic strategies to treat the NAFLD. PRACTICAL APPLICATIONS: Sesamol and sesamol-rich sesame oil have received much attention due to their performance on hepatic lipid regulation. The results of this study indicate that sesamol treatment could ameliorate hepatic steatosis by inhibiting lipid accumulation and oxidative stress, thus demonstrating that sesamol and sesame oil can be used for functional foods and nutraceutical applications in the future. In addition, the present work provides knowledge of the effects of sesamol on NAFLD and involved mechanisms, and further supplies nutritional guidelines for sesame oil consumption.


Assuntos
Hepatopatia Gordurosa não Alcoólica , Receptores Ativados por Proliferador de Peroxissomo , Benzodioxóis , Células Hep G2 , Humanos , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Estresse Oxidativo , Fenóis , Transdução de Sinais
14.
Ultrason Sonochem ; 78: 105740, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34492523

RESUMO

To study the impacts of thermosonication (TS), the spinach juice treated with TS (200 W, 400 W, and 600 W, 30 kHz, at 60 ± 1 °C for 20 mint) were investigated for bioactive compounds, antioxidant activities, color properties, particle size, rheological behavior, suspension stability, enzymatic and microbial loads. As a result, TS processing significantly improved the bioactive compounds (total flavonols, total flavonoids, total phenolic, carotenoids, chlorophyll, and anthocyanins), antioxidant activities (DPPH and FRAP assay) in spinach juice. Also, TS treatments had higher b*,L*, hue angle (h0), and chroma (C) values, while minimuma* value as compared to untreated and pasteurized samples. TS processing significantly reduced the particle size, improved the suspension stability and rheological properties (shear stress, apparent viscosity, and shear rate) of spinach juice as compared to the untreated and pasteurized sample. TS plays a synergistic part in microbial reduction and gained maximum microbial safety. Moreover, TS treatments inactivated the polyphenol oxidase and peroxidase from 0.97 and 0.034 Abs min-1 (untreated) to 0.31 and 0.018 Abs min-1, respectively. The spinach juice sample treated at a high intensity (600 W, 30 kHz, at 60 ± 1 °C for 20 mint, TS3) exhibited complete inactivation of microbial loads (<1 log CFU/ml), the highest reduction in enzymatic activities, better suspension stability, color properties, and highest bioactive compounds. Collectively, the verdicts proposed that TS processing could be a worthwhile option to pasteurize the spinach juice to enhance the overall quality.


Assuntos
Spinacia oleracea , Antocianinas , Antioxidantes/análise , Antioxidantes/farmacologia , Sucos de Frutas e Vegetais , Sonicação
15.
J Oleo Sci ; 70(7): 885-899, 2021 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-34121029

RESUMO

In order to study the flavor of French fries (FFs) prepared in different frying oils, we identified and compared the volatiles of FFs fried in high-oleic sunflower oil (HSO), sunflower oil (SO), linseed oil (LO), and palm oil (PO) during prolonged 24 h frying time. 47 different kinds of volatiles were presented, and aldehydes were the most abundant compounds. The FFs prepared in SO were rich in alkadienals, especially the (E, E)-2,4-decadienal, thus inducing the highest deep-fried odor. The content of alkenals was higher in FFs prepared in HSO, among which (E)-2-nonenal and 2-undecenal provided the undesirable oily flavor. Whereas, FFs prepared in PO were rich in alkanals, and showed an undesirable green aroma because of hexanal. Besides, the aldehydes in FFs fried in LO were the least with more undesirable flavor substances (e.g. (E, E)-2,4-heptadienal). In addition, except for the FFs fried in LO, the aldehydes in other FFs showed an increasing trend. While, the volatiles from the Maillard reaction (e.g. pyrazines) showed no clear pattern. Meanwhile, frying process had optimum frying window (approximately 12 h with total polar compounds content of 14.5%-22.2% in different oils), and the French fries prepared in this period obtained higher flavor score. Therefore, the comparison related to volatiles of FFs provided a basis for the flavor control to a certain extent.


Assuntos
Culinária/métodos , Fast Foods , Óleos Voláteis/química , Óleos de Plantas/química , Solanum tuberosum/química , Aldeídos/análise , Aldeídos/química , Odorantes , Óleos Voláteis/análise , Óleos de Plantas/análise , Paladar , Fatores de Tempo , Compostos Orgânicos Voláteis/análise , Compostos Orgânicos Voláteis/química
16.
Food Sci Nutr ; 9(1): 441-448, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33473305

RESUMO

Dyslipidemia management activity of ginger-, garlic-, and lemon-based herbal mixture was tested as paste and herbal extract in hypercholesterolemic adult male albino rats. Atherogenic diet-induced hypercholesterolemia in rats was treated by supplementing the diet with 2.5% herbal paste (4.2 g/kg b.w.) or 2.5 ml oral gavage (20 ml/kg b.w.) of liquid herbal extract daily for 42 days. Hematological and serological outcomes of herbal formulation feeding were compared with the cholesterol-fed positive control and normal control. The results suggest the significant (p < .05) inhibitory properties of herbal paste and liquid extracts against dyslipidemia showing 31%-37%, 62%-68%, and 40%-56% lower levels of total cholesterol, triglycerides (TGs), and low-density lipoprotein cholesterol (LDL-C), respectively. Treating cholesterol-fed animals with herbal paste and extract significantly (p < .05) increased total protein (5-5.5 g/dl) and serum albumin (3.7-4.2 g/dl) concentration as compared to the normal control. Contrary to significant hypocholesterolemic activity, higher serum total bilirubin levels, that is, 0.70 mg/dl, were observed in rats subchronically exposed to herbal paste and liquid extracts. Nonsignificant (p > .05) impact of herbal formula feeding was observed on hematological indices except lymphocyte counts, that is, 93% in rats fed on herbal paste. The results validate conventional hypocholesterolemic claims associated with ginger-, garlic-, and lemon-based herbal formulations; however, deeper insight into their dose-dependent response in hypercholesterolemia is necessitated to rule out the toxicological impact on the consumer.

17.
Int J Biol Macromol ; 171: 208-216, 2021 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-33310099

RESUMO

This study aimed to evaluate the potential of maltodextrin (MD) combination with gum arabic (GA), and whey protein isolate (WPI) on the microencapsulation of gurum seeds oil by a spray-drying method. Three formulations of protein-based (PB) (WPI: MD, 2:1), carbohydrate-based (CHOB) (GA: MD, 2:1), and mixed (MIX) (WPI: GA: MD, 1:1:1) wall materials were designed. The moisture content and water activity were in the range of 1.65-3.67% and 0.17-0.31, respectively, which is suitable for long-term storage. The best results were achieved when gurum seed oil was microencapsulated with carbohydrate-based, where it had the highest microencapsulation yield (92.80%) and microencapsulation efficiency (97.38%). Carbohydrate-based showed the highest relative crystallinity (32.25%) and the temperature of the glass transition (58.20 °C). FT-IR revealed that the oil was well encapsulated in the microcapsules. SEM of microcapsules showed spherical shapes without any apparent cracking on the surfaces. During the oxidative stability study, carbohydrate-based microencapsulation was the wall material that best protected the active materials against lipid oxidation.


Assuntos
Citrullus/química , Composição de Medicamentos/métodos , Goma Arábica/farmacologia , Óleos de Plantas/administração & dosagem , Polissacarídeos/farmacologia , Secagem por Atomização , Proteínas do Soro do Leite/farmacocinética , Cápsulas , Dessecação , Armazenamento de Medicamentos , Emulsões , Óculos , Ácidos Graxos Insaturados/análise , Ácidos Graxos Insaturados/química , Microscopia Eletrônica de Varredura , Oxirredução , Óleos de Plantas/química , Sementes/química , Espectroscopia de Infravermelho com Transformada de Fourier , Água , Difração de Raios X
18.
Food Funct ; 11(1): 1146-1154, 2020 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-31830159

RESUMO

In this study, separation of peptides with Angiotensin I converting enzyme (ACE)-inhibitory capacity obtained from ultrasonically pretreated defatted corn germ protein (DCGP) by using a new continuous system of enzymatic hydrolysis coupled with membrane separation (EHC-MS) was investigated. Ultrasonic pretreatment was applied to enhance the enzymatic hydrolysis rate of DCGP, as proved in our previous study. The EHC-MS system was operated in two modes which included the batch system and continuous system with continuous water and substrate feeding and was compared with the EH-offline-MS system. The selection of the membrane was based on the hydrolysate fraction which had the highest activity for inhibition of ACE. The results showed that the 1-3 kDa fraction of DCGP hydrolysates had the lowest IC50 value (0.124 mg mL-1) for inhibition of ACE. The degree of conversion (%) of DCGP and output of peptides per unit of the enzyme were significantly (P < 0.05) increased by 55.3% and 55% in the EHC-MS batch process and 79% and 473% in the EHC-MS continuous operation compared to the EH-offline-MS system. The EHC-MS using continuous water and substrate feeding operation was noted to be the best in terms of a high degree of DCG protein conversion (75.68 ± 1.34) and the output of peptides per unit of the enzyme (78.65 ± 1.13). The results revealed that the EHC-MS method with constant water and substrate feeding could show a better application in peptide production in the food industry.


Assuntos
Inibidores da Enzima Conversora de Angiotensina/isolamento & purificação , Peptídeos/isolamento & purificação , Proteínas de Plantas/isolamento & purificação , Hidrolisados de Proteína/química , Zea mays/química , Fracionamento Químico , Hidrólise , Membranas , Ondas Ultrassônicas
19.
J Food Biochem ; 43(2): e12733, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-31353657

RESUMO

Seeds from the cucurbitaceae plant family are discarded as the byproducts which generally obtained after extraction of oil during food processing. Recently, found a great deal of interest as cucurbit seeds are found to be rich source of nutrients such as monounsaturated fatty acids, polyunsaturated fatty acids, tocopherols (α-Tocopherol, ß-Tocopherol, δ-Tocopherol, γ-Tocopherol), carotenoids, ß-carotene, phytosterol, proteins, minerals, vitamins, phenolic compounds, and antioxidants. Despite the potential nutritional benefits, the commercial product of cucurbit plants are lacking in the market. Therefore, there is an urgent need to increase production and utilization of cucurbit seed oil for human nutrition. The main purpose of the present review is to sum up the published information on the nutritional potential of cucurbit seed oils to promote industrial production and stimulates further research on commercial use of cucurbit seeds. PRACTICAL APPLICATIONS: The aims of this review are to highlight the nutritional values and antioxidant properties of cucurbit seed and their impact on the overall human health. These cucurbit seeds are rich source of vitamins and minerals which are necessary for healthy human diet. In addition to other commercial oils, cucurbits oils are equally important and rich in essential active ingredients. Quite abundance of cucurbit seeds in African continents can pave way to enhance production on the industrial scale which can create employability ranging from farmers to skilled workers. In all, the oil produced from the cucurbit seeds can be applied practically to implement large-scale production as a part of food industry and dietary supplement industry in paramedical sector.


Assuntos
Antioxidantes/química , Cucurbitaceae/química , Óleos de Plantas/química , Sementes/química , Antioxidantes/metabolismo , Cucurbitaceae/metabolismo , Suplementos Nutricionais/análise , Ácidos Graxos/química , Ácidos Graxos/metabolismo , Humanos , Valor Nutritivo , Óleos de Plantas/metabolismo , Sementes/metabolismo
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