Results 141 to 150 of about 4,187 (163)

Preparation of oligosaccharides from Chinese yam and their antioxidant activity

Food Chemistry, 2015
In the present study, the oligosaccharides from Chinese yam were prepared by hydrolysis with hydrogen peroxide (H2O2), which can cleave the glycosidic bonds in polysaccharides. The hydrolysis conditions were optimised by using a central composite design (CCD) as follows: reaction time 4.02 h, temperature 84.35 °C, and H2O2 concentration 2.46%, under ...
Yi-Feng, Chen, Qin, Zhu, Shengjun, Wu
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[Quality comparison between two cultivated Chinese yam-Kunming yam and Tiegun yam].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2008
To compare the quality of cultivated Chinese yam (Dioscorea polystachya Turcz.) from Yunnan (Kunming yam) and Henan (Tiegum yam) by determining the content of dry substance in fresh sample and the contents of water extracts, ethanol extracts, starch, protein, crude-fat and polysaccharide in dry sample.The above-mentioned indexes were determined by ...
Wei-Ming, Zhang, Cheng-Ying, Shan, Hai-Ling, He, Hong-Fang, Jiang, Jiu, Zhang   +4 more
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Dioscorea opposite Thunb. 山药 (Shanyao, Chinese Yam)

2015
Yam (Dioscorea species), a member of the monocotyledonous family Dioscoreaceae, is a nutritious food in West Africa, Southeast Asia, and the Caribbean. Yam has a deciduous perennial vine climbing to twenty feet with heart-shaped leaves and tiny green flowers. The tuberous rhizome of yam is pale brown, cylindrical, and twisted.
Sue-Joan Chang, Chun-Yung Huang, Yin-Ching Chan   +2 more
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α-Glucosidase inhibitors from Chinese Yam (Dioscorea opposita Thunb.)

Food Chemistry, 2011
Abstract The inhibitory activities of crude extracts and purified constituents from the fresh tuberous rhizomes of Chinese Yam ( Dioscorea opposita Thunb.), which is commonly called Huai Shan Yao in Chinese, were evaluated against yeast α-glucosidase in order to search for the active principals for treatment of diabetes. Bioassay-guiding isolation
Lin Zhang, Bing Bai, Xiuhua Liu, Yong Wang, Mingjing Li, Dongbao Zhao   +5 more
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Proton-induced X-ray emission analysis of the Chinese yam

International Journal of PIXE, 2020
The Chinese yam is a major component of the Japanese diet consumed in raw and cooked form. It is important to determine the nutrient contents of yam, which contains high potassium levels; a simple measurement method is required. We performed proton-induced X-ray emission (PIXE) analysis of fully grown and immature yams. Analysis of the yam trunk, skin,
M. Nogami, K. Hitomi, K. Ishii
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Mathematical Modeling of Microwave Vacuum Drying of Chinese Yam

2012 Dallas, Texas, July 29 - August 1, 2012, 2012
Microwave vacuum drying of Chinese yam (Dioscorea opposite) was carried out in order to develop a mathematical model. The thin-layer drying model of Dioscorea opposite was established from the experimental data by analyzing the relationship between moisture ratio and drying time.
null Zhihuai Mao, null Guangyue Ren, null Xu Duan, null Wenxue Zhu, null Qinghua Han   +4 more
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Carboxymethyl Chinese yam starch: synthesis, characterization, and influence of reaction parameters

Carbohydrate Research, 2009
Carboxymethyl starch (CMS) was obtained as a product of the reaction of starch and monochloroacetic acid (MCA) in the presence of sodium hydroxide. The influence of the molar ratio of NaOH/AGU, the molar ratio of MCA/AGU, the reaction time, reaction temperature, and the water content on the degree of substitution (DS) was studied.
Wang, Yanli, Gao, Wenyuan, Li, Xia
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Purification and structural characterization of Chinese yam polysaccharide and its activities

Carbohydrate Polymers, 2015
Purification and structural characterization of Chinese yam polysaccharide were investigated and its activities were analyzed. Results indicated that a single component polysaccharide with a molecular weight of 16,619 Da was obtained after hot water extraction with sequential sevage deproteinization, HSCCC and Sephadex G-100 size-exclusion ...
Weifang, Yang, Ying, Wang, Xiuping, Li, Ping, Yu   +3 more
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The magic of Chinese yam

2014
3 Main Themes: Life Science, Green Technology, and Robotic ...
Lao, L, Zhang, Y, Leigh, AB, Wong, KL, Lu, J, Sze, SCW, Zhang, L, Lai, YM, Ng, TB   +8 more
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Analysis on Ecological Suitability Planting Area of Chinese Medicinal Yam

2018 7th International Conference on Agro-geoinformatics (Agro-geoinformatics), 2018
Chinese yam (Dioscorea opposita Thunb.) is consumed and regarded as medicinal food in traditional Chinese herbal medicine, Chinese medicinal yam especially is one of the most important Chinese herbal medicines, it accounts for 10%-20% of total Chinese yam and its medicinal needs have been increasing recently with the improvement of people's living ...
Biao Hu, Dongli Fan, Zhan Tian, Hanqing Xu, Yinghao Ji, Xiangyi Wang   +5 more
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