scholarly journals Antinutrient content, vitamin constituents and antioxidant properties in some value-added Nigerian traditional snacks

2013 ◽  
Author(s):  
O. Aletor ◽  
G. Oboh ◽  
S. F. Ojo
Keyword(s):  
Antioxidant Properties ◽  
Value Added

scholarly journals Effects of brewers’ spent grain protein hydrolysates on gas production, ruminal fermentation characteristics, microbial protein synthesis and microbial community in an artificial rumen fed a high grain diet

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Ran ◽  
Long Jin ◽  
Ranithri Abeynayake ◽  
Atef Mohamed Saleem ◽  
Xiumin Zhang ◽  
...  
Keyword(s):  
Protein Synthesis ◽  
Microbial Community ◽  
Antioxidant Properties ◽  
Value Added ◽  
Gas Production ◽  
Protein Hydrolysates ◽  
Ruminal Fermentation ◽  
Microbial Protein ◽  
Microbial Protein Synthesis ◽  
Spent Grain

Abstract Background Brewers’ spent grain (BSG) typically contains 20% – 29% crude protein (CP) with high concentrations of glutamine, proline and hydrophobic and non-polar amino acid, making it an ideal material for producing value-added products like bioactive peptides which have antioxidant properties. For this study, protein was extracted from BSG, hydrolyzed with 1% alcalase and flavourzyme, with the generated protein hydrolysates (AlcH and FlaH) showing antioxidant activities. This study evaluated the effects of AlcH and FlaH on gas production, ruminal fermentation characteristics, nutrient disappearance, microbial protein synthesis and microbial community using an artificial rumen system (RUSITEC) fed a high-grain diet. Results As compared to the control of grain only, supplementation of FlaH decreased (P < 0.01) disappearances of dry matter (DM), organic matter (OM), CP and starch, without affecting fibre disappearances; while AlcH had no effect on nutrient disappearance. Neither AlcH nor FlaH affected gas production or VFA profiles, however they increased (P < 0.01) NH3-N and decreased (P < 0.01) H2 production. Supplementation of FlaH decreased (P < 0.01) the percentage of CH4 in total gas and dissolved-CH4 (dCH4) in dissolved gas. Addition of monensin reduced (P < 0.01) disappearance of nutrients, improved fermentation efficiency and reduced CH4 and H2 emissions. Total microbial nitrogen production was decreased (P < 0.05) but the proportion of feed particle associated (FPA) bacteria was increased with FlaH and monensin supplementation. Numbers of OTUs and Shannon diversity indices of FPA microbial community were unaffected by AlcH and FlaH; whereas both indices were reduced (P < 0.05) by monensin. Taxonomic analysis revealed no effect of AlcH and FlaH on the relative abundance (RA) of bacteria at phylum level, whereas monensin reduced (P < 0.05) the RA of Firmicutes and Bacteroidetes and enhanced Proteobacteria. Supplementation of FlaH enhanced (P < 0.05) the RA of genus Prevotella, reduced Selenomonas, Shuttleworthia, Bifidobacterium and Dialister as compared to control; monensin reduced (P < 0.05) RA of genus Prevotella but enhaced Succinivibrio. Conclusions The supplementation of FlaH in high-grain diets may potentially protect CP and starch from ruminal degradation, without adversely affecting fibre degradation and VFA profiles. It also showed promising effects on reducing CH4 production by suppressing H2 production. Protein enzymatic hydrolysates from BSG using flavourzyme showed potential application to high value-added bio-products.

Value Addition to Artocarpus chama Buch. Fruit for Economic Empowerment of the Rural Community Residing in North East India

2017 ◽  
Vol 24 (3) ◽  
pp. 141-145
Author(s):  
Nibedita Dutta ◽  
P. Saikia ◽  
S. Biswas ◽  
Hrishikesh Sarmah
Keyword(s):  
Rural Communities ◽  
Antioxidant Properties ◽  
Value Added ◽  
Export Demand ◽  
Value Addition ◽  
North East India ◽  
North East ◽  
Medicinal Value ◽  
North Eastern ◽  
Value Added Products

Artocarpus chama Buch. Syn. A. chaplasha Linn.( Moraceae), an indigenous fruit of North Eastern (NE) region of India. Samkathal pulp is eaten afresh and possesses high nutritional value. It has also has been reported to contain antioxidant properties. The seeds are also rich source of carbohydrates and proteins and average source of fibre. In spite of these fruits provide enormous health benefits, it is under utilized in our country due to its seasonal availability and very short shelf life. Therefore, it is necessary to preserve and prepare fruit products for better utilization of the fruits by overcoming the problem of wastage. In the present study this fruit was processed to produce many value added products and to train rural communities on value addition. These products have good consumer demand because of its nutritional and medicinal value. It has more demand for development of diversified value added products from the fruits. It provides the employment opportunity for rural mass, increases export demand of value added products and helps in increase the economy of the country.

scholarly journals Effects of brewers’ spent grain protein hydrolysates on gas production, ruminal fermentation characteristics, microbial protein synthesis and microbial community in an artificial rumen fed a high grain diet

2020 ◽  
Author(s):  
Tao Ran ◽  
Long Jin ◽  
Ranithri Abeynayake ◽  
Atef Moohanmed Saleem ◽  
Xiumin Zhang ◽  
...  
Keyword(s):  
Protein Synthesis ◽  
Microbial Community ◽  
Antioxidant Properties ◽  
Value Added ◽  
Gas Production ◽  
Protein Hydrolysates ◽  
Ruminal Fermentation ◽  
Microbial Protein ◽  
Microbial Protein Synthesis ◽  
Spent Grain

Abstract Background Brewers’ spent grain (BSG) typically contains 20 ~ 29% crude protein (CP) with high concentrations of glutamine, proline and hydrophobic and non-polar amino acid, making it an ideal material for producing value-added products like bioactive peptides which have antioxidant properties. For this study, protein was extracted from BSG, hydrolyzed with 1% alcalase and flavourzyme, with the generated protein hydrolysates (AlcH and FlaH) showing antioxidant activities. This study evaluated the effects of AlcH and FlaH on gas production, ruminal fermentation characteristics, nutrient disappearance, microbial protein synthesis and microbial community using an artificial rumen system (RUSITEC) fed a high-grain diet. Results As compared to the control of grain only, supplementation of FlaH decreased ( P < 0.01) disappearances of dry matter (DM), organic matter (OM), CP and starch, without affecting fibre disappearances; while AlcH had no effect on nutrient disappearance. Neither AlcH nor FlaH affected gas production or VFA profiles, however they increased ( P < 0.01) NH 3 -N and decreased ( P < 0.01) H 2 production. Supplementation of FlaH decreased ( P < 0.01) the percentage of CH 4 in total gas and dissolved-CH 4 (dCH 4 ) in dissolved gas. Addition of monensin reduced ( P < 0.01) disappearance of nutrients, improved fermentation efficiency and reduced CH 4 and H 2 emissions. Total microbial nitrogen production was decreased ( P < 0.05) but the proportion of feed particle associated (FPA) bacteria was increased with FlaH and monensin supplementation. Numbers of OTUs and Shannon diversity indices of FPA microbial community were unaffected by AlcH and FlaH; whereas both indices were reduced ( P < 0.05) by monensin. Taxonomic analysis revealed no effect of AlcH and FlaH on the relative abundance (RA) of bacteria at phylum level, whereas monensin reduced ( P < 0.05) the RA of Firmicutes and Bacteroidetes and enhanced Proteobacteria. Supplementation of FlaH enhanced ( P < 0.05) the RA of genus Prevotella , reduced Selenomonas , Shuttleworthia , Bifidobacterium and Dialister as compared to control; monensin reduced ( P < 0.05) RA of genus Prevotella but enhaced Succinivibrio . Conclusions The supplementation of FlaH in high-grain diets may potentially protect CP and starch from ruminal degradation, without adversely affecting fibre degradation and VFA profiles. It also showed promising effects on reducing CH 4 production by suppressing H 2 production. Protein enzymatic hydrolysates from BSG using flavourzyme showed potential application to high value-added bio-products.

scholarly journals OPTIMIZATION OF EXTRACTION PARAMETERS FOR FUCOXANTHIN, GALLIC ACID AND RUTIN FROM NITZSCHIA THERMALIS

2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Vasfiye Hazal Özyur ◽  
Ayşegül Erdoğan ◽  
Zeliha Zeliha Demirel ◽  
Meltem Conk Dalay ◽  
Semih Ötleş
Keyword(s):  
Response Surface Methodology ◽  
Gallic Acid ◽  
Response Surface ◽  
Desirability Function ◽  
Antioxidant Properties ◽  
Value Added ◽  
Extraction Time ◽  
Solvent Ratio ◽  
Extraction Temperature ◽  
Extraction Parameters

Recently, microalgae have become important in their health, and cosmetic applications since they are viewed as new sources of carotenoids. Fucoxanthin is also a type of carotenoid. The anti-diabetic, anti-obesity, anti-cancer, and antioxidant properties of fucoxanthin have been widely reported. Since these valuable properties, they also represent a valuable resource of nutraceuticals for functional food applications. This study aims to determine the amount of fucoxanthin, gallic acid, and rutin in Nitzschia thermalis obtained from the Ege University Microalgae Culture Collection. The extraction parameters have been optimized using response surface methodology. The extraction temperature (25, 35, and 45°C), the extraction time (10, 20, and 30 min) and the biomass/solvent ratio (0.005, 0.001, and 0.015 g ml-1) have been assessed as response variables in the Box – Behnken design. The amount of fucoxanthin was determined by the C30 column at 450 nm, while both the amount of gallic acid and rutin were separated in the C18 column at 275 nm by HPLC-DAD. In the present study, the optimum extraction conditions providing the maximum amount of fucoxantin, gallic acid, and rutin were selected by applying the “desirability” function approach in response surface methodology. Finally, the temperature has been determined to be 27.30°C, the extraction time 10 minutes, and the biomass ratio 0.05 g ml-1. Under these conditions, the optimum fucoxanthin level has been determined as 5.8702 mg g-1, the gallic acid level as 0.0140 mg g-1, and the rutin level as 0.0496 mg g-1. The findings are in good agreement with international published values for fucoxanthin content. In addition, response surface methodology was shown to be an effective technique for optimising extraction conditions for maximum fucoxanthin yield. In conclusion, these findings may be applied in the development of extraction methodologies for value added microalgea products as well as can serve as a reference for the extraction of fucoxanthin having high gallic acid and rutin from other brown microalgae, and therefore it could potentially be applied in both pharmaceutical and food industries.

scholarly journals HORTICULTURAL CROPS VALUE ADDITION FOR NUTRITIONAL SECURITY

2018 ◽  
Vol 6 (10) ◽  
pp. 110-120
Author(s):  
Kalpana Kulshrestha
Keyword(s):  
Dietary Fiber ◽  
Fruits And Vegetables ◽  
Antioxidant Properties ◽  
Value Added ◽  
Well Being ◽  
Leafy Vegetables ◽  
Food Groups ◽  
Value Addition ◽  
Nutritional Security ◽  
Green Leafy Vegetables

Nutritional well-being is a sustainable force for health and development of people and maximization of human genetic potential. From the beginning of human history, food has been considered as the major factor in maintaining well-being and health of individuals. Active ingredients in food which are effective in promoting human health include amino acids, fats dietary fiber, antioxidants, pigments, vitamins and minerals which are present in different food groups such as pulses, cereals, legumes, oilseeds, fruits and vegetables. Among all these food groups, fruits and vegetables play a significant role in human nutrition, especially as a source of vitamins, minerals and dietary fiber. The different fruits and vegetables like carrots, tomatoes potatoes, ginger, green leafy vegetables and the like are important protective foods because of their nutritional value and antioxidant properties. Value addition of such fruits and vegetables by formulation of different value-added products are an important source of nutritional security.

scholarly journals Extraction of Proteins and Pasting and Antioxidant Properties of Soybean Hulls

2019 ◽  
Vol 8 (6) ◽  
pp. 66 ◽  
Author(s):  
Sean X. Liu ◽  
Diejun Chen ◽  
Mukti Singh ◽  
Jingyuan Xu
Keyword(s):  
Protein Content ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Value Added ◽  
Industrial Applications ◽  
Pasting Properties ◽  
Soybean Hulls ◽  
Food Ingredients ◽  
Phenolic Contents ◽  
Whole Seed

Soybean hulls are a by-product from soybean processing for oil and meal production which comprise approximately 8% of the whole seed. This study investigated water holding capacities and pasting properties, and first reported the phenolic contents and antioxidant activities from soybean hulls which are important to our long-term health. In addition, the conditions for extracting proteins from soybean hulls including optimum pH, as well as homogenizing and separation methods for extraction, were also studied. Higher protein content in extracts and recoveries was obtained with extraction at pH 9. Using sieve separation may be an effective way to extract proteins from hulls for industrial applications. The precipitated protein content increased from 51.52% to 59.29% after purification by washing with water once; however, after two washes, no further improvement was shown. The extracted proteins can be used for food applications. The ground hull powders (10% protein), dried supernatant (14% protein) and sediments (7-8% proteins) along with valuable fibers should be good food ingredients for several food categories. This research explored the great potential of converting the low value by-products into value-added functional food uses along with the benefit of reducing food and agricultural wastes.

scholarly journals Enhancing the quality attributes of salad dressing by incorporating Gac aril as a biologically active ingredient

2018 ◽  
Vol 21 (0) ◽  
Author(s):  
Phisut Naknaen ◽  
Nuttanapat Chinnapitiwong ◽  
Peimika Kruayoo
Keyword(s):  
Antioxidant Properties ◽  
Control Sample ◽  
Value Added ◽  
Biologically Active ◽  
Total Phenolic ◽  
Protective Effects ◽  
Total Oxidation ◽  
Salad Dressing ◽  
Soluble Fibre ◽  
Ga Content

Abstract Gac aril (GA) contains a very high level of lycopene, giving it exceptional antioxidant properties. Based on the superior properties of GA, the aim of this work was to fortify salad dressings with the lycopene from GA and monitor their stability during storage. The salad dressings were produced by incorporating different amounts of GA (0% to 20%, g/100 g) in the formulations. An increase in GA content caused a marked increase in the soluble fibre, lycopene and total phenolic contents while the fat content and the caloric value decreased. The firmness and viscosity also decreased with increasing GA content. The sensory evaluation revealed that the GA could be added to salad dressings up to a level of 20% and still be accepted by the consumer. It was verified the GA antioxidant effect in the salad dressing compared to that in the sample without GA, as evidenced by the peroxide value (POV), thiobarbituric acid-reactive substances (TBARS), p-anisidine value (p-AV) and total oxidation value (Totox V). The protective effects were approximately 1.75, 2.58, 5.14 and 7.58 times higher than those in the control sample for the samples containing 5%, 10%, 15% and 20% GA, respectively. It was concluded that GA could be used as an alternative source of lycopene, polyphenol compounds and dietary fibre, to enrich salad dressings. This work could be used as a guideline for industry to develop high value-added salad dressings.

scholarly journals Modern Extraction and Purification Techniques for Obtaining High Purity Food-Grade Bioactive Compounds and Value-Added Co-Products from Citrus Wastes

Foods ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 523 ◽  
Author(s):  
Mahato ◽  
Sinha ◽  
Sharma ◽  
Koteswararao ◽  
Cho
Keyword(s):  
Bioactive Compounds ◽  
Antioxidant Properties ◽  
Oxygen Demand ◽  
Value Added ◽  
Renewable Resource ◽  
Extraction Methods ◽  
Mass Scale ◽  
Extraction And Purification ◽  
Pharmaceutical Industries ◽  
Extraction Mixture

Citrus contains a range of highly beneficial bioactive compounds, such as polyphenols, carotenoids, and vitamins that show antimicrobial and antioxidant properties and help in building the body’s immune system. On consumption or processing, approximately 50% of the fruit remains as inedible waste, which includes peels, seeds, pulp, and segment residues. This waste still consists of substantial quantities of bioactive compounds that cause environmental pollution and are harmful to the ecosystem because of their high biological oxygen demand. In recent years, citrus cultivation and the production of processed foods have become a major agricultural industry. In addition to being a substantial source of economy, it is an ideal and sustainable and renewable resource for obtaining bioactive compounds and co-products for food and pharmaceutical industries. In the present article, the various methods of extraction, conventional and modern, as well as separation and isolation of individual bioactive compounds from the extraction mixture and their determination have been reviewed. This article presents both aspects of extraction methods, i.e., on a small laboratory scale and on an industrial mass scale. These methods and techniques have been extensively and critically reviewed with anticipated future perspectives towards the maximum utilization of the citrus waste.

Chemical Characterisation-Biological Evaluation of Greek Cultivar Cardoon Seeds (Cynara cardunculus). A By-product with Potential High Added Value

Planta Medica ◽  
2021 ◽  
Author(s):  
Konstantia Graikou ◽  
Panagiota-Maria Kourti ◽  
Gokhan Zengin ◽  
Olga Gortzi ◽  
Nikolaos Danalatos ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Nutritional Value ◽  
Unsaturated Fatty Acids ◽  
Antioxidant Properties ◽  
Value Added ◽  
Biological Evaluation ◽  
Added Value ◽  
Total Phenolic ◽  
Cynara Cardunculus ◽  
Perennial Plant

Abstract Cynara cardunculus (artichoke) is a perennial plant of the Mediterranean basin, known since antiquity as food and for its therapeutic properties. Cynara is a relatively small genus with two cultivated species and one wild one. Recently, successful efforts have been made to cultivate wild cardoon and monetise it as a bioenergy crop. In this study, the seeds of an established Greek cultivar of C. cardunculus, cultivated in the experimental field and used as biofuel, have been researched for their chemical profile and nutritional value. According to the results, six lignans were isolated [arctigenin, arctiin, trachelogenin, tracheloside, cynarinine, and ethylate of trachelogenin (isolated for the first time from a natural source)] as well as the most characteristic metabolites of the genus (linoleic acid, trilinolein, and 3,5-dicaffeoylquinic acid). Moreover, the total phenolic content (31.18 – 54.51 mg gallic acid equivalents/g extract) and antioxidant and enzyme inhibitory activities of the seeds have been evaluated and showed strong antioxidant properties (44.42 – 516.81 mg gallic acid equivalents/g extract) as well as satisfactory bleaching (enzyme tyrosinase, 16.95 – 23.80 mg kojic acid equivalents/g extract), antidiabetic (enzymes a-amylase, a-glucosidase, 0.14 – 1.75 mmol acarbose equivalents/g extract), and protective against neurodegenerative disease (cholinesterase enzymes, 0.49 – 1.22 mg galanthamine equivalents/g extract) activities. The nutritional evaluation of the seeds confirmed them as a rich source of unsaturated fatty acids, dietary fibre (24.1%), and high protein content (19.3%). It is noteworthy that such a neglected bioactive by-product, with essentially high nutritional value, as the studied seeds could be investigated for its value-added applications towards food and food supplements areas.

Sign in / Sign up

Export Citation Format

Share Document