| 李桂花，符 梅，罗文龙，骆善伟，郭巨先.粉葛资源营养品质综合分析[J].广东农业科学,2021,48(9):72-80 |
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粉葛资源营养品质综合分析 |
| Comprehensive Analysis of the Nutritional Quality of Pueraria lobata |
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| DOI：10.16768/j.issn.1004-874X.2021.09.008 |
| 中文关键词: 粉葛 品质分析 综合评分 聚类分析 |
| 英文关键词: Pueraria lobata（Willd.）Ohwi quality anynasis comprehensive evaluation clustering analysis |
| 基金项目:佛山市市院农业科技合作项目“佛山 粉葛根腐病绿色防控关键技术研究与示范” |
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| 中文摘要: |
| 【目的】收集省内外粉葛种质资源，测定和综合评价品质指标，筛选品质优良的育种材料。【方法】采用 2, 6- 二氯靛酚滴定法、比色法、酶水解法、紫外吸收法和酸碱洗涤法分别对 20 个粉葛种质资源的维生素 C、还原糖、淀粉、蛋白质和膳食纤维 5 个品质指标进行测定和综合评价。【结果】20 个粉葛种质资源的营养成分含量均存在显著差异，变异系数介于 18.2%~45.0% 之间。采用平均隶属函数法和主成分分析法综合评分，居前 3 位的品种均为钟落潭粉葛、韶关火山粉葛和佛山合水粉葛，其中钟落潭粉葛维生素 C 含量21.45 mg/100g、还原糖 0.45 g/100g、淀粉 30.78 g/100g、蛋白质 2.73 g/100g，膳食纤维占比 1.24%；两种分析方法排名较后的均为惠州龙门麻榨粉葛和郁南都城粉葛，而得分居中等的粉葛排名相对不一致暂不具备可比性。利用系统聚类分析方法，20 个粉葛资源按照综合品质优劣可分为 4 个类群，其类群优劣依次为Ⅰ＞Ⅲ＞Ⅱ＞Ⅳ。【结论】研究结果可为粉葛营养品质评价提供一定的数据支持和参考，为粉葛良种创新利用开发和深加工提供一定的基础。 |
| 英文摘要: |
| 【Objective】Twenty representative Pueraria lobata germplasm resources were collected for quality analysis, and good quality materials were selected as breeding reserves.【Method】2,6-dichlorophenol titration, colorimetric method, enzymatic hydrolysis method, ultraviolet absorption method and acid-base washing method were used to test the contents of vitamin C, reducing sugar, starch, protein and dietary fiber of 20 P. lobata germplasm resources.【Result】There were significant differences in the contents of various nutrient components of the 20 P. lobata germplasm resources, and the coefficient of variation was between 18.2% and 45%. According to the comprehensive scores by the average membership function method and the principal component analysis, the top three varieties were Zhongluotan Pueraria, Shaoguan Huoshan Pueraria and Foshan Heshui Pueraria. Zhongluotan Pueraria had high vitamin C, reducing sugar, starch, protein and dietary fiber of 21.45 mg/100g, 0.45 g/100g, 30.78 g/100g, 2.73 g/100g and 1.24%, respectively. Pueraria of Huizhou Longmenmazha and Yunanducheng were among the worst ranked Pueraria. Pueraria with middle scores were relatively chaotic and not comparable for the time being. By using systematic cluster analysis method, four groups were divided according to the comprehensive quality, and the their quality ranked as follows: Ⅰ＞Ⅲ＞Ⅱ＞Ⅳ .【Conclusion】The experiment results can provide certain data support and references for the evaluation of nutritional quality of P. lobata, and provide a foundation for the innovative development and further processing of the improved varieties of P. lobata. |
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