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1.
Molecules ; 29(1)2024 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-38202852

RESUMO

Lemon peel represents an interesting by-product owing to its content of dietary fibre (DF) and (poly)phenols, which is of great importance for its valorisation. Hence, the objective of this study was to characterise the DF, total phenolic content (TPC), and antioxidant capacity of two lemon-peel-derived ingredients using two different methods (drying with warm air and enzymatic hydrolysis with pectinesterase). The analysis included a DF assessment, followed by neutral sugars characterisation through GC-FID and uronic acids determination via colorimetry. Subsequently, TPC and antioxidant capacity using the FRAP method were quantified through spectrophotometry. The swelling capacity (SWC), water retention capacity (WRC), and fat absorption capacity (FAC) were also determined as functional properties. It was observed that pectinesterase treatment led to a reduction in soluble DF and an increase in insoluble DF. This treatment also affected the pectin structure, thereby diminishing its ability to absorb water and fat within its matrix. The TPC was also reduced, resulting in a decrease in antioxidant capacity. Conversely, employing warm air exhibited a noteworthy increase in antioxidant capacity. This underscores its crucial contribution to the valorisation of lemon peel, not only by diminishing the environmental impact but also by enabling the acquisition of fibre ingredients with a noteworthy antioxidant capacity.


Assuntos
Antioxidantes , Fibras na Dieta , Antioxidantes/farmacologia , Cromatografia Gasosa , Colorimetria , Fenóis , Água
2.
Crit Rev Food Sci Nutr ; : 1-31, 2023 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-37937848

RESUMO

Total or partial replacement of traditional durum wheat semolina (DWS) by alternative flours, such as legumes or wholegrain cereals in pasta improves their nutritional quality and can make them interesting vector for fortification. Climate-smart gluten-free (C-GF) flours, such as legumes (bambara groundnut, chickpea, cowpea, faba bean, and pigeon pea), some cereals (amaranth, teff, millet, and sorghum), and tubers (cassava and orange fleshed sweet potato), are of high interest to face ecological transition and develop sustainable food systems. In this review, an overview and a critical analysis of their nutritional potential for pasta production and processing conditions are undertaken. Special emphasis is given to understanding the influence of formulation and processing on techno-functional and nutritional (starch and protein digestibility) properties. Globally C-GF flours improve pasta protein quantity and quality, fibers, and micronutrients contents while keeping a low glycemic index and increasing protein digestibility. However, their use introduces anti-nutritional factors and could lead to the alteration of their techno-functional properties (higher cooking losses, lower firmness, and variability in color in comparison to classical DWS pasta). Nevertheless, these alternative pasta remain more interesting in terms of nutritional and techno-functional quality than traditional maize and rice-based gluten free pasta.

3.
Mar Drugs ; 21(2)2023 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-36827172

RESUMO

Tub gurnard is a highly abundant fishery species caught as a discard in the Mediterranean Sea. This work proposes its valorisation through the release of potential antihypertensive peptides and glycosaminoglycans (GAGs) through the controlled hydrolysis of tub gurnard skin proteins. Four proteases (Esperase, Alcalase, Trypsin and Pronase E) were used to obtain potent angiotensin converting enzyme I (ACE)-inhibitory hydrolysates. Peptides and GAGs were separated and evaluated for their antihypertensive potential by fluorometry. The peptide-rich fractions derived from the Esperase and Alcalase hydrolysates showed very low IC50 values (47 and 68 µg/mL, respectively). Only the GAGs from the Trypsin and Esperase hydrolysates were relevant ACE inhibitors (63 and 52% at 1 mg/mL, respectively). The peptide composition of the most potent ACE-inhibitory fractions derived from the Esperase and Alcalase hydrolysates (IC50 values of 33 and 29 µg/mL, respectively) was analysed by RP-LC-ESI-MS/MS. The analysis suggests that the ACE-inhibitory activity is related to the peptide hydrophobicity, as well as to the presence of specific residues at any of the last four C-terminal positions. The in silico gastrointestinal digestion of these fractions yielded small peptides with antihypertensive potential.


Assuntos
Anti-Hipertensivos , Perciformes , Animais , Anti-Hipertensivos/química , Hidrólise , Tripsina , Espectrometria de Massas em Tandem , Hidrolisados de Proteína/química , Peptídeos/farmacologia , Peptidil Dipeptidase A/química , Perciformes/metabolismo , Subtilisinas/química , Digestão
4.
J Dairy Sci ; 106(6): 3868-3883, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37080788

RESUMO

l-Glutamine, quercetin, slippery elm bark, marshmallow root, N-acetyl-d-glucosamine, licorice root, maitake mushrooms, and zinc orotate have been reported to help treat leaky gut. The purpose of this research was to explore the impact of these functional ingredients on the physico-chemical, microbiological, and sensory properties of yogurt. The milk from same source was equally divided into 9 pails and the 8 ingredients were randomly assigned to the 8 pails. The control had no ingredient. Milk was fermented to yogurt. The pH, titratable acidity, syneresis, viscosity, color (L*, a*, b*, C*, and h*), Streptococcus thermophilus counts, and Lactobacillus delbrueckii spp. bulgaricus counts of yogurts were determined on d 1, 7, 14, 21, 28, 35, and 42, whereas coliform counts, yeast and mold counts, and rheological characteristics were determined on d 1 and 42. The sensory study was performed on d 3 and particle size of the functional ingredients (powder form) was also determined. When compared with control, the incorporation of slippery elm bark into yogurts led to less syneresis. l-Glutamine increased pH and n' values (relaxation exponent derived from G') and lowered titratable acidity values. N-Acetyl-d-glucosamine incorporation resulted in higher n' and lower titratable acidity values, whereas maitake mushroom led to lower n' values. Incorporating quercetin increased the growth of L. bulgaricus. Adding maitake mushrooms increased the growth of S. thermophilus but lowered apparent viscosity values, whereas quercetin decreased its S. thermophilus counts. Quercetin decreased L* and a* values but increased b* values, and maitake mushroom increased a* values. Thixotropic behavior increased with the addition of licorice root and quercetin. Adding slippery elm bark, N-acetyl-d-glucosamine, licorice root, maitake mushrooms, and zinc orotate into yogurt did not affect the sensory properties, whereas yogurts with quercetin had the lowest sensory scores. Overall, most of these ingredients did not cause major changes to yogurt properties.


Assuntos
Iogurte , Animais , Glutamina/análise , Quercetina/análise , Iogurte/análise
5.
Molecules ; 28(19)2023 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-37836835

RESUMO

α-Mangostin, a major xanthone found in mangosteen (Garcinia mangostana L., Family Clusiaceae) pericarp, has been shown to exhibit anticancer effects through multiple mechanisms of action. However, its effects on immune checkpoint programmed death ligand-1 (PD-L1) have not been studied. This study investigated the effects of mangosteen pericarp extract and its active compound α-mangostin on PD-L1 by in vitro and in silico analyses. HPLC analysis showed that α-mangostin contained about 30% w/w of crude ethanol extract of mangosteen pericarp. In vitro experiments in MDA-MB-231 triple-negative breast cancer cells showed that α-mangostin and the ethanol extract significantly inhibit PD-L1 expression when treated for 72 h with 10 µM or 10 µg/mL, respectively, and partially inhibit glycosylation of PD-L1 when compared to untreated controls. In silico analysis revealed that α-mangostin effectively binds inside PD-L1 dimer pockets and that the complex was stable throughout the 100 ns simulation, suggesting that α-mangostin stabilized the dimer form that could potentially lead to degradation of PD-L1. The ADMET prediction showed that α-mangostin is lipophilic and has high plasma protein binding, suggesting its greater distribution to tissues and its ability to penetrate adipose tissue such as breast cancer. These findings suggest that α-mangostin-rich mangosteen pericarp extract could potentially be applied as a functional ingredient for cancer chemoprevention.


Assuntos
Garcinia mangostana , Xantonas , Garcinia mangostana/química , Antígeno B7-H1 , Xantonas/farmacologia , Xantonas/química , Extratos Vegetais/farmacologia , Etanol
6.
J Food Sci Technol ; 60(1): 361-371, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36618036

RESUMO

The Juçara fruit (Euterpe edulis Martius) has been progressively standing out for presenting significant biological and nutritional activity. Its functional characteristics are related to its high content of anthocyanins, which, when isolated, are highly unstable, limiting their applications. The present research proposed to obtain an anthocyanin-rich extract from the juçara pulp, microencapsulate it with the maltodextrin and beta-cyclodextrin (beta-CD) matrices and evaluate the stability of the microencapsulated anthocyanins against light, pH, and milk development fermented. The use of encapsulating agents brought the anthocyanins significant thermal and light stability, in addition to intensifying their colors in a broader pH range. The FTIR-ATR techniques and the thermal analyzes of DSC and TGA showed that there was no molecular inclusion between the anthocyanins in the extract and beta-CD, but there was a physical interaction with the maltodextrin. In the development of fermented milk, the use of maltodextrin showed better product color stability. Therefore, anthocyanin microencapsulation processes can contribute to the development of innovative, more stable, and effective commercial food products. Supplementary Information: The online version contains supplementary material available at 10.1007/s13197-022-05623-w.

7.
Crit Rev Food Sci Nutr ; : 1-13, 2022 Oct 19.
Artigo em Inglês | MEDLINE | ID: mdl-36260087

RESUMO

Malto-oligosaccharides (MOS) are α-1,4 glycosidic linked linear oligosaccharides of glucose, which have a diverse range of functional applications in the food, pharmaceutical, and other industries. They can be used to modify the physicochemical properties of foods thereby improving their quality attributes, or they can be included as prebiotics to improve their nutritional attributes. The degree of polymerization of MOS can be controlled by using specific enzymes, which means their functionality can be tuned for specific applications. In this article, we review the chemical structure, physicochemical properties, preparation, and functional applications of MOS in the food, health care, and other industries. Besides, we offer an overview for this saccharide from the perspective of prospect functional ingredient, which we feel lacks in the current literature. MOS could be expected to provide a novel promising substitute for functional oligosaccharides.

8.
Crit Rev Food Sci Nutr ; : 1-20, 2022 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-36440859

RESUMO

Hemp is a valuable crop with a wide range of use, from applications in foods and textiles to pharmaceuticals. Over recent years, the use of hemp as food and food ingredients has drastically increased. The growth is driven by numerous health benefits hemp possesses and its wide range of applications in the food industry. This review provides the scientific literature concerning the benefits of industrial hemp in the food industry. The relevant historical context of use, recent applications in the food industry, health benefits, various development challenges, and the global market outlook for hemp-based food products have been analyzed. Evidence suggests that today hemp is widely consumed as food or an ingredient in the food. Hemp-based foods are marketed as having various health benefits, although their reception by target consumers and success varies. Besides, scientific research on hemp-derived foods has dramatically increased over recent years. Numerous in vitro and in vivo studies have investigated the health benefits of hemp-based foods. Therefore, there is a promising growth trend in producing novel foods from industrial hemp. Nevertheless, due to health concerns related to THC, there is a general need for regulatory compliance when integrating hemp into foods to ensure product safety before use.

9.
Crit Rev Food Sci Nutr ; 62(12): 3281-3300, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33356495

RESUMO

Cereal ß-glucan describes a group of soluble dietary fiber primarily found in barley and oats. It is characterized by the mixed occurrence of ß-(1,3) and ß-(1,4) bonds between the glucose monomers, forming long polysaccharide chains with unique properties. Alongside their technological benefits, they exhibit a number of health-beneficial properties. Nevertheless, ß-glucan applications as nutraceutical food ingredient, are rarely utilized. The changes in physicochemical (molar mass, solubility and viscosity) and health-beneficial (glycemic control, lowering of blood glucose) properties during food processing and storage are a major drawback. The understanding of the complex mechanisms behind the health benefits of ß-glucan is still incomplete. In contrast to original believes, it becomes evident from recent literature, that physiological properties are not only based on the dose administered. A more thorough view on the molecule and its structure-size-function relationship is required to understand the impact of molar mass, molar ratio, solubility and viscosity. Therefore, this review evaluates the recent scientific data to identify ß-glucan key properties responsible for the nutraceutical function in the final product. This provides a guideline for future research which characteristics need careful monitoring and preservation throughout processing and help to fully utilize cereal ß-glucan as nutraceutical ingredient.


Assuntos
Ingredientes de Alimentos , Hordeum , beta-Glucanas , Avena , Glicemia , Fibras na Dieta/análise , Grão Comestível/química , Ingredientes de Alimentos/análise , Hordeum/química , beta-Glucanas/química
10.
Molecules ; 27(2)2022 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-35056742

RESUMO

Iberian ham is one of the most representative Spanish products and presents an excellent nutritional and sensory quality. Iberian ham trimming fat is considered a by-product and to give a new use to this remaining part could represent a healthy and innovative option for obtaining sustainable foods. The purpose of this work was to obtain a new bioactive ingredient from Iberian ham trimming fat with the highest amount of antioxidants and monounsaturated fatty acids (MUFA), using a new non-invasive solvent-free method. To obtain the essence, two different extraction procedures were carried out. After fatty acid characterization, degree of acidity, peroxide index and a basic sensory analysis were performed. Antioxidant in vitro activity and total phenolic compounds (TPC) were also determined. This new ingredient showed a better sensory profile than raw ham fat, a lower degree of acidity, a higher content of MUFAs, and also showed a higher antioxidant capacity and an increase in phenolic compounds compared to the raw material. This bioactive essence could be used as a food, a cosmetic or a nutraceutical ingredient to prevent certain diseases related to oxidative stress and could also contribute to the maintenance of the circular economy.


Assuntos
Antioxidantes , Ácidos Graxos Monoinsaturados , Tecnologia de Alimentos/métodos , Carne de Porco , Adulto , Antioxidantes/análise , Antioxidantes/química , Ácidos Graxos Monoinsaturados/análise , Ácidos Graxos Monoinsaturados/química , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fenóis/análise , Carne de Porco/análise , Paladar
11.
Molecules ; 27(24)2022 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-36558074

RESUMO

Degradation of the mycobacterial complex containing mycolic acids (MAs) by natural bioactive compounds is essential for producing safe and value-added foods with therapeutic activities. This study aimed to determine the degradation efficiency of natural organic acid extracts (i.e., citric, malic, tartaric, and lactic), quadri-mix extract from fruits and probiotics (i.e., lemon, apple, grape, and cell-free supernatant of Lactobacillus acidophilus), and synthetic pure organic acids (i.e., citric, malic, tartaric, and lactic), against MA in vitro in phosphate buffer solution (PBS) and Karish cheese models. The degradation effect was evaluated both individually and in combinations at different concentrations of degradants (1, 1.5, and 2%) and at various time intervals (0, 6, 12, 24, and 48 h). The results show that MA degradation percentage recorded its highest value at 2% of mixed fruit extract quadri-mix with L. acidophilus and reached 99.2% after 48 h both in PBS and Karish cheese, unlike other treatments (i.e., citric + malic + tartaric + lactic), individual acids, and sole extracts at all concentrations. Conversely, organic acid quadri-mix revealed the greatest MA degradation% of 95.9, 96.8, and 97.3% at 1, 1.5, and 2%, respectively, after 48 h. Citric acid was more effective in MA degradation than other acids. The fruit extract quadri-mix combined with L. acidophilus-fortified Karish cheese showed the highest sensorial characteristics; hence, it can be considered a novel food-grade degradant for MA and could be a promising biocontrol candidate against Mycobacterium tuberculosis (Mtb) in food matrices.


Assuntos
Queijo , Mycobacterium , Probióticos , Ácidos Micólicos , Queijo/microbiologia , Lactobacillus acidophilus , Ácidos/metabolismo , Probióticos/metabolismo
12.
Molecules ; 27(15)2022 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-35956759

RESUMO

Medicinal and food homologous adlay (Coix lachryma-jobi L. var. ma-yuen Stapf) plays an important role in natural products promoting human health. We demonstrated the systematic actional mechanism of functional ingredients in adlay to promote human health, based on the PubMed, CNKI, Google, and ISI Web of Science databases from 1988 to 2022. Adlay and its extracts are rich in 30 ingredients with more than 20 health effects based on human and animal or cell cultures: they are anti-cancer, anti-inflammation, anti-obesity, liver protective, anti-virus, gastroprotective, cardiovascular protective, anti-hypertension, heart disease preventive, melanogenesis inhibiting, anti-allergy, endocrine regulating, anti-diabetes, anti-cachexia, osteoporosis preventive, analgesic, neuroprotecting, suitable for the treatment of gout arthritis, life extending, anti-fungi, and detoxifying effects. Function components with anti-oxidants are rich in adlay. These results support the notion that adlay seeds may be one of the best functional foods and further reveal the action mechanism of six major functional ingredients (oils, polysaccharides, phenols, phytosterols, coixol, and resistant starch) for combating diseases. This review paper not only reveals the action mechanisms of adding adlay to the diet to overcome 17 human diseases, but also provides a scientific basis for the development of functional foods and drugs for the treatment of human diseases.


Assuntos
Antialérgicos , Coix , Animais , Alimento Funcional , Humanos , Fenóis , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico
13.
Vopr Pitan ; 91(6): 61-67, 2022.
Artigo em Russo | MEDLINE | ID: mdl-36648183

RESUMO

The search for natural ingredients that have a certain nutritional value and contribute to the preservation of human health is a very urgent task. The goal of this research was to study the effect of three viscous extracts - two polymalt and one malt extract, on the psychophysiological functions of animals in an experiment with prolonged consumption. Material and methods. The study was conducted on white mongrel male rats weighing 110-130 g, divided into 4 groups of 13 individuals. The 1st group (control) received standard granulated feed without extracts, the 2nd group - the feed with a polymalt grain extract from barley, hulless oats and wheat, the 3rd group - the feed with a polymalt grain extract from barley, hulless oats and rye, the 4th group - the feed with a malt extract from barley grain, in a dose of 2.1 g/kg of body weight. The consumption of the studied extracts in all groups of animals lasted 21 days. The animals were weighed before and after the consumption period and tested using the "Open field" test (research and motor activity were recorded), the «Rotating Rod¼ test (study of locomotor reactions), «Forced Swimming¼ (study of induced depression). Results. The addition of malt and polymalt extracts to the diet of the experimental animals had a beneficial effect on them: the duration of fading as an indicator of depression during swimming test in all experimental rats decreased by 31.4-37.8% with varying degrees of statistical significance. At the same time, a monomalt extract from barley grain and a polymalt extract from grain of barley, naked oats, and rye had a more positive effect on the condition of the animals in the experiment: in the "Rotating Rod" test, the retention time of animals as an indicator of endurance increased by 26.0-27.1%; in the «Open Field¼ test, motor and exploratory activity increased and the time of passive behavior decreased by 35.0-37.4%. Conclusion. The development, production and research of malt extracts is a promising direction that requires the selection of initial grain components taking into account their chemical composition. It is possible to create general restorative supplements on the basis of extracts, as well as to introduce them into alcoholic beverages in order to reduce the toxicity of ethyl alcohol and preserve a number of physiological functions in the human body during alcohol consumption.


Assuntos
Dieta , Hordeum , Humanos , Masculino , Animais , Ratos , Suplementos Nutricionais , Peso Corporal , Alérgenos , Grão Comestível , Extratos Vegetais/farmacologia
14.
J Sci Food Agric ; 101(5): 1963-1978, 2021 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-32914435

RESUMO

BACKGROUND: The olive oil industry generates significant amounts of semi-solid wastes, namely olive pomace. Olive pomace is a by-product rich in high-value compounds (e.g. dietary fibre, unsaturated fatty acids, polyphenols) widely explored to obtain new food ingredients. However, conventional extraction methods frequently use organic solvents, while novel eco-friendly techniques have high operational costs. The development of powdered products without any extraction step has been proposed as a more feasible and sustainable approach. RESULTS: The present study fractionated and valorized the liquid and pulp fraction of olive pomace obtaining two stable and safe powdered ingredients, namely a liquid-enriched powder (LOPP) and a pulp-enriched powder (POPP). These powders were characterized chemically, and their bioactivity was assessed. LOPP exhibited a significant amount of mannitol (141 g kg-1 ), potassium (54 g kg-1 ) and hydroxytyrosol derivatives (5 mg g-1 ). POPP exhibited a high amount of dietary fibre (620 g kg-1 ) associated with a significant amount of bound phenolics (7.41 mg GAE g-1 fibre DW) with substantial antioxidant activity. POPP also contained an unsaturated fatty acid composition similar to that of olive oil (76% of total fatty acids) and showed potential as a reasonable source of protein (12%). Their functional properties (solubility, water-holding and oil-holding capacity), antioxidant capacity and antimicrobial activity were also assessed, and their biological safety was verified. CONCLUSIONS: The development of olive pomace powders for application in the food industry could be a suitable strategy to add value to olive pomace and obtain safe multifunctional ingredients with higher health-promoting effects than dietary fibre and polyphenols. © 2020 Society of Chemical Industry.


Assuntos
Olea/química , Extratos Vegetais/análise , Resíduos/análise , Fibras na Dieta/análise , Ácidos Graxos/química , Inocuidade dos Alimentos , Frutas/química , Polifenóis/análise , Pós/química
15.
Molecules ; 23(12)2018 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-30563127

RESUMO

The importance of consuming functional foods has led the food industry to look for alternative sources of ingredients of natural origin. Eggplants are a type of vegetable that is valued for its content in phytochemical compounds and it is due to the fact that this research is conducted towards the development of eggplant flour as a proposal to be used as a functional ingredient in the food industry. In this study, the eggplant fruits were divided into four groups, based on the drying method and the equipment used: Minced, drying oven (T1); sliced, drying oven (T2); sliced and frozen, drying tunnel (T3); and sliced, drying tunnel (T4). All the eggplant flours showed the same trend regarding their antioxidant capacity and phenolic content in the order T2 > T4 > T1 > T3. The freezing of eggplant was found to have a negative effect on functional and antioxidant properties. With respect to their nutritional composition, the flours did not change in their crude fiber, protein, and fat contents. In general terms, the T2 flour is a potential ingredient for the preparation of foods with functional properties since it is rich in phenolic compounds and antioxidants.


Assuntos
Suplementos Nutricionais , Compostos Fitoquímicos/química , Compostos Fitoquímicos/farmacologia , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Solanum melongena/química , Antioxidantes/química , Antioxidantes/farmacologia , Fenóis/química , Fenóis/farmacologia
16.
J Food Sci Technol ; 55(5): 1781-1788, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29666530

RESUMO

In the present study, the effect of two independent variables, yellow konjac flour-κ-carrageenan (KFC) mixed gels and red koji rice (RKR) extracts for the development of restructured meat product, was investigated using central composite design of response surface methodology (RSM). The assessed physical characteristics were hardness, water holding capacity (WHC), and color (°hue) of the restructured meat products. The second order regression models with high R2 value were significantly fitted to predict the changes in hardness, WHC and color. The results showed that the predicted optimum formula of restructured meat were the addition of KFC mixed gels at 10.21% and RKR extracts at 6.11%. The experiments results validate these optimum formula and found to be not statistically different at 5% level. Thus, the RSM was successfully employed and can be used to optimize the formulation of restructured meat.

17.
J Food Sci Technol ; 55(6): 2208-2219, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29892122

RESUMO

Enzymatic liquefaction (EL) ensures fast extraction and enhanced recovery of bioactives from red capsicum along with reduced degradation of these compounds remained in the pomace. Hence, red capsicum pomace obtained as byproduct after EL was freeze dried to produce capsicum pomace powder (CP). CP had almost 80% of bioactives (total carotenoids 91.23 ± 2.35 mg/100 g) and antioxidant activity (DPPH 1.61 ± 0.12 µmol TE/g) compared to fresh pomace. CP was further used to develop muffins. Different concentrations (2-10%) of CP were mixed in wheat flour for preparation of muffins. Wheat flour was fortified with CP at different levels (2-10%) and subsequently, effect of CP fortification on height, texture, bioactives and sensory quality of muffins was observed. CP fortification improved the quality in terms of color, flavor and texture. During storage, hardness values (34.42-32.56 N) showed decreasing trend with increase in CP content. Overall, 6% CP fortification was found most acceptable without causing significant change in porosity and crust uniformity of fortified muffins. Thus, present study demonstrated that fortification of muffins with 6% CP as functional ingredient offers an opportunity to develop quality muffins with enhanced antioxidant activity (DPPH 13.04 ± 0.02 µmol TE/g) and total carotenoids (3.46 ± 2.41 mg/100 g).

18.
J Food Sci Technol ; 54(9): 2842-2851, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28928524

RESUMO

Gelled emulsions with carrageenan are a novel type of emulsion that could be used as a carrier of unsaturated fatty acids in functional foods formulations. Lipid degradation through volatile compounds was studied in gelled emulsions which were high in polyunsaturated oils (sunflower or algae oil) after 49 days of storage. Aqueous Lavandula latifolia extract was tested as a natural antioxidant. Analysis of the complete volatile profile of the samples resulted in a total of 40 compounds, classified in alkanes, alkenes, aldehydes, ketones, acids, alcohols, furans, terpenes and aromatic hydrocarbons. During storage, the formation of the volatile compounds was mostly related to the oxidation of the main fatty acids of the sunflower oil (linolenic acid) and the algae oil (docosahexaenoic acid). Despite the antioxidant capacity shown by the L. latifolia extract, its influence in the oxidative stability in terms of total volatiles was only noticed in sunflower oil gels (p < 0.05), where a significant decrease in the aldehydes fraction was found.

19.
J Sci Food Agric ; 96(3): 900-8, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25752293

RESUMO

BACKGROUND: The technology involving the use of water-in-oil-in-water double emulsions (DEs) offers an interesting approach to improve the fat content of foods. With this aim, the effect on frankfurter properties of replacing pork backfat with two different DEs prepared using perilla oil and pork backfat as lipid phases was assessed. This strategy was compared with straightforward addition of the lipid source and addition by means of an oil-in-water (O/W) emulsion. RESULTS: As compared with all-pork-fat frankfurters, the ones with perilla oil had a higher proportion of n-3 polyunsaturated fatty acids. Reduced-fat frankfurters had similar water- and fat-binding properties irrespective of the lipid source or the technological strategy used to incorporate it. Moreover, the oil source but not its mode of incorporation determined the oxidation levels of frankfurters. In reduced-fat samples, except in the case of frankfurters formulated with a perilla oil-in-water emulsion, hardness was unaffected either by the type of fat or by its mode of incorporation. The replacement of pork backfat by perilla oil reduced the overall acceptability of products when perilla oil was added by means of the O/W emulsion and DE approaches. CONCLUSION: This technology is suitable for labelling meat products with specific nutritional and health claims.


Assuntos
Gorduras na Dieta/análise , Emulsões/química , Aditivos Alimentares/química , Produtos da Carne , Ácido alfa-Linolênico/química , Animais , Manipulação de Alimentos , Humanos , Óleos de Plantas/química , Suínos
20.
Int J Food Sci Nutr ; 66(5): 498-504, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26166006

RESUMO

The aim of this work was to obtain a functional flour with enhanced nutritional properties, and antioxidant and antihypertensive potential from black bean seeds by optimizing the solid state bioconversion (SSB) process using a Rhizopus oligoporus strain. Response surface methodology was applied as optimization technique. A central composite experimental design with two factors [fermentation temperature (FT) = 30-40 °C/fermentation time (Ft) = 6-108 h] and five levels was used (13 treatments). The bioprocessed cotyledons from each treatment were dried, milled, and blended with its previously dried-milled seed coats. The best combination FT/Ft of SSB to obtain the functional flour was 38 °C/100 h. SSB increased the calculated protein efficiency ratio (from 1.59 to 2.40), antioxidant activity (from 13 948 to 22 733 µmol ET/100 g, dw), total phenolic compounds (TPC) (from 190 to 432 mg EGA/100 g, dw) and antihypertensive potential (IC(50) from 95.57 to 0.0321 µg/mL). SSB is an effective strategy to improve the TPC of common beans for enhanced functionality.


Assuntos
Anti-Hipertensivos/farmacologia , Antioxidantes/farmacologia , Fabaceae/química , Fermentação , Valor Nutritivo , Fenóis/metabolismo , Sementes/metabolismo , Inibidores da Enzima Conversora de Angiotensina/farmacologia , Biotransformação , Cotilédone , Proteínas Alimentares , Fabaceae/microbiologia , Manipulação de Alimentos/métodos , Alimento Funcional , Humanos , Fenóis/farmacologia , Rhizopus , Sementes/microbiologia , Temperatura
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