scholarly journals Determining the nutritional value and antioxidant capacity of duckweed (Wolffia arrhiza) protein under artificial conditions

LWT ◽  
2021 ◽  
pp. 112477
Author(s):  
Zhubin Hu ◽  
Yang Fang ◽  
Zhuolin Yi ◽  
Xueping Tian ◽  
Jinmeng Li ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Wolffia Arrhiza

scholarly journals Impact of Dietary Supplementation with Moringa oleifera Leaves on Performance, Meat Characteristics, Oxidative Stability, and Fatty Acid Profile in Growing Rabbits

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 248
Author(s):  
Shaimaa Selim ◽  
Mahmoud F. Seleiman ◽  
Mohamed M. Hassan ◽  
Ahmed A. Saleh ◽  
Mohamed A. Mousa
Keyword(s):  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Moringa Oleifera ◽  
Live Weight ◽  
Dietary Supplementation ◽  
Serum Levels ◽  
Relative Content ◽  
Daily Weight Gain ◽  
Control Group ◽  
Moringa Oleifera Leaves

Moringa oleifera leaves (MOL) have gained great interest as a non-traditional feed ingredient due to their unique nutritional value. Therefore, the objective of the current study was to evaluate the effects of graded dietary supplementation levels with MOL on performance, carcass characteristics, antioxidant capacity, blood biochemical constituents, meat quality, and fatty acids profile of growing rabbits. A total of 120 weaned New Zealand white rabbits (6 weeks old) were randomly allotted into 4 dietary groups with 5 replicates each (n = 6), which were fed for 42 days with a basal diet as control or 3 experimental diets supplemented with 5, 10, or 15 g/kg MOL. The results showed that, compared to the control group, the dietary inclusion of MOL at a level of 10 and 15 g/kg DM linearly increased (p < 0.01) final live weight (2403.3 and 2498.2 vs. 2166.6) and average daily weight gain (36.5 and 35.51 g/d vs. 28.72 g/d), and enhanced feed conversion ratio (2.49 and 2.50 vs. 3.14). The dietary supplementation with MOL linearly increased dressing out percentage, spleen index, intestinal length, and decreased abdominal fat index (p < 0.01). Greater serum levels of total protein and globulin, but lower alanine aminotransferase and aspartate aminotransferase were observed in the MOL-fed rabbits (p < 0.01). Serum levels of total triglycerides, cholesterol, and low-density lipoprotein (p < 0.05) were decreased linearly and quadratically in the MOL groups compared with the control. Glutathione peroxidase activity increased (p < 0.01), whereas malondialdehyde decreased (p < 0.01) linearly and quadratically in both serum and meat, in response to dietary MOL supplementation. Dietary MOL supplementation increased the meat crude protein content but lowered the relative content of ether extract in the meat (p < 0.05). The relative content of the meat n-3 PUFA was increased by about 33.71%, 29.46%, and 24.36% for the MOL0.5%, MOL1%, and MOL1.5% groups compared to control. In conclusion, MOL could be used at a level of 1.5g/kg of the growing rabbits’ diets with beneficial impacts on performance, antioxidant capacity, and the nutritional value of the meat.

scholarly journals Stabilizing Grain Yield and Nutrition Quality in Purple Rice Varieties by Management of Planting Elevation and Storage Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 83
Author(s):  
Supapohn Yamuangmorn ◽  
Suchada Jumrus ◽  
Sansanee Jamjod ◽  
Narit Yimyam ◽  
Chanakan Prom-u-Thai
Keyword(s):  
Grain Yield ◽  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Brown Rice ◽  
Storage Conditions ◽  
Harvest Management ◽  
Rice Varieties ◽  
Opposite Pattern ◽  
Dpph Activity ◽  
And Storage

Purple rice has become an interesting source of nutritional value among healthy cereal grains. The appropriate cultivation together with post-harvest management would directly benefit farmers and consumers. This study aimed (i) to determine the yield, grain nutritional quality, and antioxidant capacity of purple rice varieties grown at lowland and highland elevations, and (ii) to evaluate the effects of storage conditions on the stability of the rice nutritional value during six months of storage. The high anthocyanin PES variety grown in the lowlands had a higher grain yield than the plants grown in the highlands, but grain anthocyanin concentration had the opposite pattern. In the high antioxidant capacity KAK variety, grain yield and DPPH activity were not significantly different between plants grown at the two elevations. The storage of brown rice and vacuum-sealed packages were both found to preserve greater anthocyanin concentrations in PES, but there was no effect on the DPPH activity of KAK. The grain properties were not significantly different between storage at 4 °C and room temperature. This study suggests that the optimal cultivation practices and storage conditions would result in the higher yield and grain quality of purple rice varieties.

scholarly journals Selected dried fruits as a source of nutrients

2021 ◽  
Author(s):  
Iga Rybicka ◽  
Justyna Kiewlicz ◽  
Przemysław Łukasz Kowalczewski ◽  
Anna Gliszczyńska-Świgło
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Capacity ◽  
Dietary Fiber ◽  
Mineral Composition ◽  
Nutritional Value ◽  
Sea Buckthorn ◽  
Dried Fruits ◽  
Goji Berry ◽  
Rose Hip ◽  
Unhealthy Snacks

AbstractDried fruits are an excellent alternative to unhealthy snacks. Twelve commercially available dried fruits were selected: dates, raisins, prunes, Goji berry, chokeberry, rose hip, sea buckthorn, berberis, physalis, haritaki, noni and juniper. The nutritional value in terms of moisture, ash, protein, fat, carbohydrate, dietary fiber, energy value, mineral composition, antioxidant activity and tannins was compared. It is a novelty in the literature in relation to the particular analytes (e.g., minerals, tannins) and/or fruits (e.g., berberis, noni, haritaki). Especially rich in protein were Goji berry (13.3%), sea buckthorn (9.3%), noni (8.9%) and physalis (8.0%); in fat − sea buckthorn (11.2%); in dietary fiber (4.4–53.0%) − most of analyzed products. High antioxidant capacity was noticed for haritaki, berberis, rose hip, Goji berry, and physalis. An important source of minerals was 100 g of: noni (345 mg of Ca; 251 mg of Mg), rose hip (844 mg of Ca; 207 mg of Mg), juniper (564 mg of Ca), sea buckthorn (58 mg of Fe), berberis (24 mg of Fe) and haritaki (14 mg of Fe). The nutritionally attractive dried fruits have the potential for wider application in food formulations.

Anthocyanins, Colour and Antioxidant Properties of Eggplant (Solanum melongena L.) and Violet Pepper (Capsicum annuum L.) Peel Extracts

2006 ◽  
Vol 61 (7-8) ◽  
pp. 527-535 ◽  
Author(s):  
Eva Sadilova ◽  
Florian C. Stintzing ◽  
Reinhold Carle
Keyword(s):  
Antioxidant Capacity ◽  
Capsicum Annuum ◽  
Nutritional Value ◽  
Antioxidant Properties ◽  
Solanum Melongena ◽  
In Vitro Assays ◽  
Capsicum Annuum L ◽  
Food Colour ◽  
Acetone Extracts

Acetone extracts from eggplant (Solanum melongena L.) and violet pepper (Capsicum annuum L.) peels both belonging to the Solanaceae plant family were characterized with respect to their anthocyanin profiles, colour qualities and antioxidant capacities. According to HPLC-DAD-MS3 analyses the major anthocyanin in eggplant was delphinidin-3-rutinoside, while the predominant pigment in violet pepper was assigned to delphinidin-3-transcoumaroylrutinoside- 5-glucoside. Since virtually all anthocyanins were delphinidin-based, the effect of acylation and glycosylation patterns on colour stability and antioxidant capacity could be assessed. Application of two in vitro-assays for antioxidant capacity assessment revealed that eggplant generally exhibited higher values compared to violet pepper which was ascribed to 3,5-diglycosylated structures predominating in the latter. The higher extent of acylation in violet pepper was reflected by a more purplish colour shade of the extracts, but did not translate into a higher stability against fading which again was attributed to additional glycosyl substitution at C5. These findings support the relevance of structurerelated activities of anthocyanins both for understanding food colour and their particular nutritional value.

scholarly journals Seasonal Nutritional Profile of Gelidium corneum (Rhodophyta, Gelidiaceae) from the Center of Portugal

Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2394
Author(s):  
Mário Cavaco ◽  
Adriana Duarte ◽  
Marta V. Freitas ◽  
Clélia Afonso ◽  
Susana Bernardino ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Antioxidant Capacity ◽  
Crude Protein ◽  
Nutritional Value ◽  
Food Supplement ◽  
Total Lipids ◽  
Nutritional Profile ◽  
Iodine Values ◽  
Agar Quality ◽  
Potential Use

Gelidium corneum is a well-known agarophyte, harvested worldwide for its high agar quality. However, the species also exhibits an interesting nutritional profile, but with seasonal variations. Therefore, to evaluate the nutritional value of G. corneum, ash, crude protein, total lipids, and carbohydrates were analyzed at different times of the year. The heavy metals mercury, arsenic, lead, cadmium, and tin, as well as iodine were also measured. Finally, the seasonal antioxidant capacity of G. corneum extracts was evaluated. Our results indicate that the biomass is rich in protein (up to 16.25 ± 0.33%) and carbohydrates (up to 39.5 ± 3.29%), and low in lipids (up to 2.75 ± 0.28%), and especially in the summer, the AI, TI indexes, n-6/n-3 and h/H ratios (0.93, 0.6, 0.88 and 1.08, respectively) are very interesting. None of the contaminants exceeded the legally established limits, and the iodine values were adequate for a healthy diet. Finally, the antioxidant capacity is fair, with the DPPH £ 10.89 ± 1.46%, and ABTS £ 13.90 ± 1.54% inhibition, FRAP £ 0.91 ± 0.22 AAE.g−1, and TPC £ 6.82 ± 0.26 GAE.g−1. The results show that G. corneum is an attractive resource, with potential use as food or as a food supplement.

scholarly journals Physicochemical Quality, Antioxidant Capacity and Nutritional Value in Tuberous Roots of Some Wild Dahlia Species

2019 ◽  
Vol 47 (3) ◽  
Author(s):  
Esteban A. RIVERA-ESPEJEL ◽  
Oscar CRUZ-ALVAREZ ◽  
José M. MEJÍA-MUÑOZ ◽  
María R. GARCÍA-MATEOS ◽  
María T.B. COLINAS-LEÓN ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Digital Object Identifier ◽  
Physicochemical Quality ◽  
Tuberous Roots ◽  
Randomized Complete Block Design ◽  
Selection Of

The aim of this research was to evaluate the physicochemical quality, antioxidant capacity and nutritional value in tuberous roots of some wild dahlia species. The experiment was carried out in the Department of Plant Science of the Autonomous University Chapingo, Mexico. Plants were established in a randomized complete block design with five replications. The total soluble solids (TSS), titratable acidity (TA), vitamin C (VC), total phenols (TP), antioxidant capacity (AC), inulin and its proximate composition were evaluated. Among the materials analyzed, the most outstanding wild species were Dahlia campanulata, D. coccinea and D. brevis, where D. campanulata stood out for its concentration of VC (0.05 mg 100 g-1), AC (1.88 mg VCEAC g-1), inulin, DM and TC (72.25, 24.38 and 88.37%, respectively), however, the inulin content was similar to D. coccinea (66.17%), which was also outstanding with respect to the content of TP (1.74 mg GA g-1). Likewise, D. brevis presented the highest values of RFi (5.49%) and A (78.42%). According to our results, the tuberous roots of wild dahlia species can be used as food, as well as being a source of selection of traits of nutraceutic interest for genetic improvement.   ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********  

scholarly journals Production of some Colored Potato Genotypes in Organic Culture

2018 ◽  
Vol 75 (1) ◽  
pp. 90
Author(s):  
Rodica SOARE ◽  
Maria DINU ◽  
Cristina BABEANU ◽  
Mihnea MODRAN
Keyword(s):  
Vitamin C ◽  
Antioxidant Capacity ◽  
Biological Material ◽  
Nutritional Value ◽  
Production Capacity ◽  
Culture Conditions ◽  
Anthocyanin Content ◽  
Good Production ◽  
Organic Culture ◽  
Medium Weight

The purpose of this study was to identify the cultivars of potatoes with good production capacity and high nutritional value under ecologically culture conditions. The biological material consisted of five new potatoes cultivars: Brasovean, Carpatin, Cranberry Red, Montain Rose, Purple Majesty and Blue Congo. These new, highly pigmented varieties have yellow, pink or red peel and pulp, due to its high anthocyanin content. In order to achieve the objective, the productivity elements were determined: number of tubers and medium weight/plant, productivity as well as starches, carbohydrates, vitamin C content and antioxidant capacity. The obtained results were statistically interpreted by the analysis of variance, and the differences between genotypes were estimated by the threshold of significance at p≤0.05%. Cultivar Carpatin recorded the best production (32.7 t/ha) and Cranberry red and Montain Rose cultivars recorded the highest content in vitamin C (17.6 respectively 18.64 mg/100g f.m) and Blue Congo with highest antioxidant capacity (162.65 DPPH μMTE/100g).

scholarly journals l-Ascorbic acid content and antioxidant capacity in less-known fruit juices

2019 ◽  
Vol 37 (No. 5) ◽  
pp. 359-365
Author(s):  
Ivo Soural ◽  
Petr Šnurkovič ◽  
Monika Bieniasz
Keyword(s):  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Aloe Vera ◽  
Ascorbic Acid Content ◽  
The Other ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Total Antioxidant

Eight less-known juices are characterised and contents are monitored of selected substances and nutritional parameters. 100% juices were produced of Aloe Vera, Aronia, Blackcurrant, Black elder, Cranberry, Malpighia, Pomegranate and Seaberry by pressing, including the flesh. Total phenolic compounds (TPC) and ascorbic acid (AA) content were analysed as other parameters. The juices were measured on total antioxidant capacity (TAC) as the content of trolox, where the highest levels were found for Malpighia 63.2 mM, when the value was significantly different (P &lt; 0.05) compared with all the other juices, while Aloe Vera had lowest levels with 0.4 mM. The Aronia juice possessed the highest level of TPC (8297 mg of GAE/l). TAC levels very well corresponded with TPC levels while AA content actually did not correlate with TAC values. In addition to the objective analysis, the juices were subjected to a sensory evaluation. Blackcurrant presents an attractive product from the sensorial aspect as well as in terms of the nutritional value.

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