scholarly journals Optimizing Bioactive Substances Extraction Procedures from Guava, Olive and Potato Processing Wastes and Evaluating their Antioxidant Capacity

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Ibrahim Khalifa ◽  
Hassan Barakat ◽  
Hamdy A. El-Mansy ◽  
Soliman A. Soliman
Keyword(s):  
Antioxidant Capacity ◽  
Potato Processing ◽  
Bioactive Substances ◽  
Extraction Procedures ◽  
Processing Wastes

scholarly journals Physical-chemical properties of exotic and native Brazilian fruits

2019 ◽  
Vol 68 (3) ◽  
pp. 175-181 ◽  
Author(s):  
Veridiana Zocoler de Mendonça ◽  
Rogério Lopes Vieites
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
High Concentration ◽  
Bioactive Substances ◽  
Fruit Species ◽  
Physical Chemical ◽  
Spondias Purpurea

Many fruit species are still not well-studied, despite being rich in bioactive substances that have functional properties. The objective of this article was to evaluate the antioxidant potential and characterize the physical-chemical characteristics of unconventional brazilian fruits (cabeludinha - Myrciaria glazioviana, sapoti - Manilkara zapota, pitomba - Talisia esculenta, yellow gumixama - Eugenia brasiliensis var. Leucocarpus and seriguela - Spondias purpurea). Total soluble solids, pH, titratable acidity, sugars, pigments, phenolic compounds and antioxidant capacity were measured. Mature fruits were used in the analyses. Pitomba had high levels of soluble solids, 24.6 °Brix, while sapoti had 0.05 g malic acid 100 g-1 pulp. Yellow grumixama and seriguela had the highest concentrations of anthocyanins and carotenoids. Cabeludinha had a high concentration of phenolic compounds, 451.60 mg gallic acid 100 g-1 pulp. With the exception of sapoti, all fruits had a high antioxidant capacity (> 95%).

scholarly journals Nutritive Value of Potato Processing Wastes in Total Mixed Rations for Dairy Cattle

1985 ◽  
Vol 68 (5) ◽  
pp. 1207-1214 ◽  
Author(s):  
Chris Onwubuemeli ◽  
J.T. Huber ◽  
K.J. King ◽  
C.O.L.E. Johnson
Keyword(s):  
Dairy Cattle ◽  
Nutritive Value ◽  
Potato Processing ◽  
Processing Wastes

Upgrading of 100 000 PE Goch Sewage Treatment Plant – Design of 2-Stage Sewage Treatment and Anaerobic Thermophilic/Mesophilic Sludge-Stabilisation

1992 ◽  
Vol 25 (4-5) ◽  
pp. 331-337 ◽  
Author(s):  
G. Kugel ◽  
E. Zingler ◽  
G. Hellfeier
Keyword(s):  
Retention Time ◽  
Hydraulic Retention Time ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Water ◽  
Activated Sludge Process ◽  
Plant Design ◽  
Potato Processing ◽  
Processing Wastes

The 100 000 PE Goch STP is to be upgraded by implementing a 2-stage activated sludge process with integrated nitrification and denitrification to treat strong sewage water dominated by potato processing wastes. Thermophilic (75 °C) acidification reactors will be added to mesophilic (38 °C) digesters (total hydraulic retention time about 13 days).

scholarly journals Optimization of Uruset Apple Vinegar Production Using Response Surface Methodology for the Enhanced Extraction of Bioactive Substances

Foods ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 107 ◽  
Author(s):  
Seydi Yıkmış
Keyword(s):  
Antioxidant Capacity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Flavonoid ◽  
Total Phenolic ◽  
Process Conditions ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Bioactive Substances ◽  
Total Antioxidant

In this study, the aim is to produce non-thermal vinegar by using red Uruset apples, which have high bioavailability among apple varieties. For this purpose, Uruset apple vinegar was produced and ultrasound at different times (2, 4, 6, 8 and 10 min) and different amplitudes (40%, 50%, 60%, 70%, and 80%); in addition, a 26 kHz frequency was applied to the samples. Total phenolic content (TPC), total flavonoid content (TFC), total antioxidant capacity (1,1-diphenyl- 2-picrylhydrazyl (DPPH) and cupric reducing antioxidant capacity (CUPRAC)), and color values were evaluated for the optimization of process conditions. At the same time, the differences between commercial apple vinegar (CV), pasteurized Uruset apple vinegar (PV), and a control (C) of untreated apple vinegar were investigated. Ultrasound treatment of Uruset apple vinegar was more successful for the enrichment of bioactive substances than the other samples. At the end of the study, the maximal optimization values for Uruset apple vinegar were 7.4 min and 62.2 amplitude. At the end of optimization, CUPRAC (0.69 mg TEAC/mL), DPPH (0.49 mg TEAC/mL), total flavonoid content (46.95 mg CE/L), and total phenolic content (124.25 mg GAE/L) were determined. As a result, ultrasound technology was successfully used for Uruset apple vinegar production.

scholarly journals Antioxidant Capacity and Phytonutrient Content in the Seed Coat and Cotyledon of Common Beans (Phaseolus vulgaris L.) from Various Regions in Mexico

Antioxidants ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 5 ◽  
Author(s):  
Celia Chávez-Mendoza ◽  
Karla Hernández-Figueroa ◽  
Esteban Sánchez
Keyword(s):  
Antioxidant Capacity ◽  
Common Bean ◽  
Seed Coat ◽  
Nutritional Value ◽  
Genetic Enhancement ◽  
Bioactive Substances ◽  
Significant Difference ◽  
Hue Angle ◽  
The Common ◽  
Whole Seed

The common bean is a good source of protein and bioactive substances giving it a large antioxidant capacity. The extensive variability of bean genotypes creates the need to characterize them with regard to their nutritional value as a tool in biofortification programs. The purpose of this study was to obtain the antioxidant capacity and phytonutrient content both in the seed coat and the cotyledon of 12 common bean varieties from different regions in Mexico. In the case of the whole seed, lightness (L*), a* (red-purple) and b* (yellow-purple) color coordinates were determined, as well as the chroma and hue angle. In the case of the seed coat and the cotyledon, the protein content, the phytonutrient content and the antioxidant capacity (2,2-diphenyl-1-picrylhydrazyl (DPPH)) were evaluated. A significant difference was observed (p ≤ 0.05) among bean varieties and between seed coat and cotyledon in all variables evaluated. Cotyledon showed a higher content of protein, H, Ni, Zn, Cu, N, P, K S and Mn, while the seed coat showed a higher content of Fe, Ca and Mg and a greater antioxidant capacity (59.99%). The Higuera Azufrado bean variety stood out as having a higher content of N, S and protein. We have concluded that the nutritional characterization performed on Mexican bean varieties represents a valuable tool for genetic enhancement programs and crop biofortification strategies.

Calcium mitigates the stress caused by ZnSO4 as a sulphur fertilizer and enhances the sulforaphane formation of broccoli sprouts

RSC Advances ◽  
2015 ◽  
Vol 5 (17) ◽  
pp. 12563-12570 ◽  
Author(s):  
Runqiang Yang ◽  
Liping Guo ◽  
Yulin Zhou ◽  
Chang Shen ◽  
Zhenxin Gu
Keyword(s):  
Antioxidant Capacity ◽  
Bioactive Substances ◽  
Broccoli Sprouts ◽  
Genes Expression ◽  
Sulphur Fertilizer ◽  
Myrosinase Activity

CaCl2 improved the growth and sulforaphane formation of broccoli sprouts under ZnSO4via enhancing key bioactive substances level, antioxidant capacity, myrosinase activity and related genes expression.

scholarly journals Monitoring of Bioactive Compounds of Tomato Cultivars as Affected by Mulching Film

2018 ◽  
Vol 49 (4) ◽  
pp. 267-273
Author(s):  
M. Valšíková ◽  
J. Mlček ◽  
L. Snopek ◽  
M. Rehuš ◽  
S. Škrovánková ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Ascorbic Acid Content ◽  
Polyphenol Content ◽  
Total Polyphenols ◽  
Bioactive Substances ◽  
Tomato Fruits ◽  
Tomato Cultivars ◽  
Mulching Film

Abstract The influence of varieties and the effect of mulching film on antioxidant capacity, polyphenol content, ascorbic acid content, and yield of tomato fruits were investigated. Results of two years (2012 and 2013) investigations were compared. The results proved a statistically significant effect of year, mulching film, and variety on the content of total polyphenols (0.92–1.49 g gallic acid equivalents per kg of fresh weight (FW), ascorbic acid (26.66–38.62 mg per 100 g FW), and antioxidant capacity (1.12–1.94 g ascorbic acid equivalents per kg FW), while the values were the highest in 2013 and in uncovered soil. Conversely, a higher yield was found in mulching film compared with uncovered soil, also in 2013 (48.65–120.38 t ha−1). There was a negative correlation between the yield and the content of bioactive compounds (BC) and antioxidant capacity. The content of bioactive substances, antioxidant capacity, and yield of tomato fruits is dependent on the vintage, agronomical interventions, and genotype.

scholarly journals Development and Performance of Bioactive Compounds-Loaded Cellulose/Collagen/Polyurethane Materials

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1191 ◽  
Author(s):  
Iuliana Spiridon ◽  
Narcis Anghel ◽  
Maria Valentina Dinu ◽  
Stelian Vlad ◽  
Adrian Bele ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Controlled Release ◽  
Antioxidant Capacity ◽  
Lipoic Acid ◽  
Antioxidant Properties ◽  
Mechanical Resistance ◽  
Bioactive Substances ◽  
Release Studies ◽  
Base Matrix ◽  
And Performance

Here we present a new biomaterial based on cellulose, collagen and polyurethane, obtained by dissolving in butyl imidazole chloride. This material served as a matrix for the incorporation of tannin and lipoic acid, as well as bioactive substances with antioxidant properties. The introduction of these bioactive principles into the base matrix led to an increase of the compressive strength in the range 105–139 kPa. An increase of 29.85% of the mucoadhesiveness of the film containing tannin, as compared to the reference, prolongs the bioavailability of the active substance; a fact also demonstrated by the controlled release studies. The presence of bioactive principles, as well as tannins and lipoic acid, gives biomaterials an antioxidant capacity on average 40%–50% higher compared to the base matrix. The results of the tests of the mechanical resistance, mucoadhesiveness, bioadhesiveness, water absorption and antioxidant capacity of active principles recommend these biomaterials for the manufacture of cosmetic masks or patches.

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