نتایج جستجو برای: grapes

تعداد نتایج: 5205  

Journal: :Indian journal of experimental biology 2007
Shrirang S Pakhale Goudar S Karibasappa Asha G Ramchandani Brij Bhushan Arun Sharma

Antioxidant potency of Indian grape cultivars varying in their skin color, seed and polyphenol content (Bangalore blue, Pandhari sahebi, Sharad seedless and Thompson seedless) and their components (whole grapes, pulp with skin and seeds) was examined as 2,2'-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity using electron spin resonance spectrometry. The total polyphenols in Indian g...

Journal: :فرآوری و نگهداری مواد غذایی 0
منور طهماسبی پور دانشگاه تبریز جلال دهقان نیا دانشگاه تبریز سید صادق سیدلو هریس دانشگاه تبریز بابک قنبرزاده دانشگاه تبریز

drying foodstuffs can have negative effects on quantitative and qualitative characteristics of the products, including porosity and bulk density. therefore, novel technologies can be used to improve these characteristics. in this study, apparent density changes during drying grapes pretreated with ultrasound for 10, 20 and 30 minutes, and carboxymethyl cellulose (cmc) at three concentrations of...

Journal: :Journal of agricultural and food chemistry 2008
Michele Solfrizzo Giuseppe Panzarini Angelo Visconti

A liquid chromatographic method for the determination of ochratoxin A in grapes, dried vine fruits, and winery byproducts was developed. A mixture of either acetonitrile/water or acetonitrile/water/methanol was used as an extraction solvent mixture. After immunoaffinity column cleanup, the final extract was analyzed by high-performance liquid chromatography (HPLC) with a fluorometric detector (...

2017
Zheng Wei Jianming Luo Yu Huang Wenfeng Guo Yali Zhang Huan Guan Changmou Xu Jiang Lu

Polyphenol compositions and concentrations in skins and seeds of five muscadine grapes (cv. "Noble", "Alachua", "Carlos", "Fry", and "Granny Val") cultivated in the United States (Tallahassee-Florida, TA-FL) and South China (Nanning-Guangxi, NN-GX and Pu'er-Yunnan, PE-YN) were investigated, using ultra performance liquid chromatography tandem triple quadrupole time-of-flight mass spectrometry (...

Journal: :Journal of agricultural and food chemistry 2017
Sijing Li Keren Bindon Susan E P Bastian Vladimir Jiranek Kerry L Wilkinson

Wine quality can be significantly affected by tannin and polysaccharide composition, which can in turn be influenced by grape maturity and winemaking practices. This study explored the impact of three commercial wine additives, a maceration enzyme, an enotannin, and a mannoprotein, on the composition and sensory properties of red wine, in particular, in mimicking the mouthfeel associated with w...

Journal: :Bulletin of entomological research 2014
D Thiéry K Monceau J Moreau

The phenology of insect emergence affects reproductive success and is especially critical in short-lived species. An increasing number of studies have documented the effects of thermal and other climatic variations and of unpredictable habitats on the timing of adult insect emergence within and between populations and years. Numerous interacting factors may affect the phenology of adult emergen...

Journal: :Journal of Heredity 1917

2011
Mamiko Shimazaki Keiko Fujita Hironori Kobayashi Shunji Suzuki

We report here that pink grape berries were obtained by a short insertion in the intron of the MybA1 gene, a gene that regulates grape berry color. Genetic variation was detected among the MybA1 genes from grapes cultivated worldwide. PCR analysis of the MybA1 gene demonstrated that the size of the MybA1 gene in the red allele differs among grapes. Oriental V. vinifera bearing pink berries has ...

2018
Peter S Murano Oral Capps

Objectives: To examine Plate Waste (PW) from elementary and middle school-aged children by school and by grade when grapes were on the lunch menu versus when they were absent. The primary hypothesis tested was that grapes enhance consumption and lessen plate waste, thereby serving as a “gateway” fruit to healthier eating. The foods examined were selected fruits, vegetables, and entrées. The end...

Journal: :Journal of economic entomology 2003
Christopher Tipping Veronique Bikoba Gabriel J Chander Elizabeth J Mitcham

Silwet L-77, an organosilicone surfactant, was applied to several arthropod pests of California table grapes. Eggs of grape mealybug, Pseudococcus maritimus (Ehrhorn), and omnivorous leafroller, Platynota stultana Walsingham, were tolerant to 0.1, 0.25, and 0.5% treatment solutions; however, eggs of Pacific spider mite, Tetranychus pacificus McGregor, were highly susceptible with mortality >99....

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