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[Quality comparison between two cultivated Chinese yam-Kunming yam and Tiegun yam].
- Source :
-
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials [Zhong Yao Cai] 2007 May; Vol. 30 (5), pp. 513-5. - Publication Year :
- 2007
-
Abstract
- Objective: 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.<br />Method: The above-mentioned indexes were determined by methods of air desiccation, cold-immersing, hot-immersing, iodine-blue coloration, half Micro-Kjeldahl, Soxhlet extraction and spectrophotometric method respectively.<br />Result: In fresh sample, the content of dry substance of Kunming yam is a little lower than Tiegun yam; in dry sample, all indexes of Kunming yam are higher than or approach to those of Tiegun yam except the content of crude-fat. Especially the content of polysaccharide in Kunming yam is 64% higher than that of Tiegun yam.<br />Conclusion: Kunming yam, with high quality, high yield and good taste, deserves paying close attention as a good variety.
- Subjects :
- China
Dioscorea growth & development
Fats analysis
Fats isolation & purification
Plant Proteins isolation & purification
Plant Tubers chemistry
Plant Tubers growth & development
Plants, Edible chemistry
Plants, Edible growth & development
Plants, Medicinal growth & development
Polysaccharides isolation & purification
Quality Control
Species Specificity
Dioscorea chemistry
Plant Proteins analysis
Plants, Medicinal chemistry
Polysaccharides analysis
Subjects
Details
- Language :
- Chinese
- ISSN :
- 1001-4454
- Volume :
- 30
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials
- Publication Type :
- Academic Journal
- Accession number :
- 17727052