Sweetpotato phytochemical content was evaluated in four genotypes (NCPUR06-020, Covington, Yellow Covington, and NC07-847) at harvest and after curing/storage for 4 or 8 months. Curing and storage for up to 8 months did not significantly affect total phenolic content in Covington, Yellow Covington, and NC07-847, however for NCPUR06-020, a purple-fleshed selection, total phenolic content decline...

The current work concerns the optimization process of phenolic compounds solid liquid extraction from grape byproducts at high temperatures and short incubation times. The effect of five experimental parameters (solidliquid ratio, particle size, time, temperature and solvent mixture) mostly believed to affect the extraction process was undertaken. A first response surface methodology experiment...

various destructive and non-destructive methods are used to measure the maturity and internal quality parameters of fruits. destructive methods often consume time and are costly. in this study, the ability of near infrared spectroscopy for prediction of the quality properties such as soluble solids content, titratable acid, ph, total phenol and extract anthocyanin of 'bidaneh ghermez'...

Effects of nitrogen (N) deficiency and sucrose (Suc) addition on regulation of anthocyanin biosynthesis and their relationship were investigated in this study. Radish sprouts subjected to N deficiency had 50% higher anthocyanin accumulation than when grown in Hoagland solution (a nutrient medium with all macronutrients). The contents of endogenous soluble sugars (Suc, fructose, and glucose) in ...

In this study investigated the effect of putrescine sprayed (0.5 & 1mM) on Chamomile (Matricaria chamomilla L.) and the changed of Anthocyanin, Phenolic compounds, POX & CAT Antioxidative enzymes were examined. The results show that Putrescine treatments increased hydrogen peroxide in seedlings to compare control. Phenolic compound content under putrescine treatments are different. Phenolic com...

Blueberries (Vaccinium corymbosum, cvs. Collins, Bluecrop) were exposed to ultraviolet light-C (UV-C) radiation treatments from 0 to 4 kJ/m2 rior to 7 days storage at 5 ◦C plus 2 days at 20 ◦C, 90% RH. Weight loss and firmness were not affected by light treatment. Decay incidence from ipe rot (Colletotrichum acutatum, syn. C. gloeosporioides) on fruit was decreased by 10% with 1–4 kJ/m2 UV-C li...

The aim of this work is to evaluate the impact of high-power pulsed light (HPPL) on the microbial control and nutritional properties of strawberries. Berries were treated with HPPL and afterwards analyzed in terms of microbial contamination, shelf life extension, antioxidant capacity, firmness, total phenolic, total anthocyanin and ascorbic acid content, and colour. Results indicate that the de...

The effectiveness of chitosan fruit coating to delay the qualitative and nutraceutical traits of three strawberry cultivars, namely "Candonga", "Jonica" and "Sabrina", as well as the effects of chitosan on antioxidant enzymes were evaluated. The fruits were coated with 1% and 2% chitosan solution and stored at 2 °C for nine days. Samples were taken every three days. Physico-chemical (weight los...

Melissa officinalis L. is a well-known medicinal plant from the family of lamiaceae. The plant is high in flavonoid. Flavonoids of lemon balm such as rosmarinic acid and anthocyanin have an antiviral and antioxidant effect. Micronutrients are the element that is necessary for the plant in low concentration. In this experiment the effect of micronutrient (Fe and Zn) was examined on the ...