CHANGES IN TURBIDITY, TOTAL PHENOLIC AND ANTHOCYANIN CONTENTS OF CLEAR RED GRAPE JUICE DURING PROCESSING
نویسندگان
چکیده
منابع مشابه
Clear Juice Turbidity Monitoring for Sugar Quality
A considerable amount of South African raw sugar is sold to export markets. Consistently good filterability of this sugar is important for satisfying the requirements of customers. To the refiner, the filterability of raw melt is important as this affects refinery throughput. Analysis of filtrationimpeding impurities in raw sugar has shown that, among other things, poor juice clarification coul...
متن کاملAntioxidant Activity, Total Phenolic Compounds and Anthocyanin Contents in 35 Different Grapevine (Vitis vinifera L.) Cultivars Grown in Fars Province
Grapes are significant sources of nutritional antioxidants as well as biologically active dietary components. This study was carried out to determine the amount of total phenols, anthocyanins and antioxidant activity of 35 grapevine (Vitis vinifera L.) cultivars grown in Fars province (Iran). Ripened bunches were randomly harvested from grapevine collection in Zarghan (Fars province, Iran) Agri...
متن کاملDecreasing pH results in a reduction of anthocyanin coprecipitation during cold stabilization of purple grape juice.
Anthocyanin pigments in grape juice can coprecipitate with potassium bitartrate (KHT) crystals during cold stabilization, but factors that reduce these adsorptive losses are not well understood. We hypothesized that coprecipitation on a % w/w basis should be decreased at lower pH. In initial experiments, model juice solutions containing an anthocyanin monoglucoside extract and varying pH values...
متن کاملThe effect of red grape juice and exercise, and their combination on parkinson’s disease in rats
Objective: Parkinson's disease (PD) is one of the most common neurodegenerative disorders which is characterized by tremor, rigidity, bradykinesia and postural disturbances. Studies indicate that grape juice and exercise may have beneficial effects on neurodegenerative disorders. Therefore, in the present study, we evaluated the effects of red grape juice (GJ) together with treadmill running on...
متن کاملProcyanidin content of grape seed and pomace, and total anthocyanin content of grape pomace as affected by extrusion processing.
UNLABELLED Grape juice processing by-products, grape seed and pomace are a rich source of procyanidins, compounds that may afford protection against chronic disease. This study was undertaken to identify optimal extrusion conditions to enhance the contents of monomers and dimers at the expense of large molecular weight procyanidin oligomers and polymers in grape seed and pomace. Extrusion varia...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: GIDA / THE JOURNAL OF FOOD
سال: 2015
ISSN: 1300-3070,1309-6273
DOI: 10.15237/gida.gd15029