Abstract: In order to investigate the nutrition quality of Auricularia auricular-judae from different origin regions in Heilongjiang province, taking 8 Auricularia auricular-judae from different regions as tested material, and ash, protein, fat, polysaccharide, crude fibre, total contents of amino acid as evaluation indexes for nutrient quality, this paper carried out eveluation and analysis on the nutrition quality of Auricularia auricular-judae on the base of principal component analysis by fuzzing mathematics and clustering methodology. The results of fuzzing mathematics analysis showed that protein and crude fibre could be used as indexes for evaluating Auricularia auricular-judae quality. The good and bad quality order of Auricularia auricular-judae from different regions was Changbaishan>Dongning>Yichun>Mudanjiang>Hegang>Anda>Shangzhi>Longjiang. Clustering analysis results showed that the nutrient quality of Changbaishan and Dongning were the best classified as the first class. Their comprehensive evaluation value were 0.941 and 0.756, respectively. Those from Yichun, Mudanjiang, Hegang, Anda, Shangzhi were classified as medium nutrition quality, with comprehensive evaluation value from 0.156~0.462. That from Longjiang was alone classified as class with the worst nutrition quality, its comprehensive evaluation value was 0.151. These results provided technical references for analyzing nutrition quality of Auricularia auricular-judae.

Key words: Auricularia auricular-judae, nutrition quality evaluation, principal component analysis, clustering analysis

摘要： 为探究黑龙江省不同来源地黑木耳的营养品质，以8个不同来源地的黑木耳为材料，以灰分、蛋白质、脂肪、多糖、粗纤维、氨基酸总量作为营养品质评价指标，在主成分分析的基础上，利用模糊数学和聚类分析法对其进行营养品质评价分析。模糊数学分析结果表明：蛋白质和粗纤维可作为黑木耳品质鉴定的指标；不同来源地黑木耳营养品质优劣顺序为长白山、东宁、伊春、牡丹江、鹤岗、安达、尚志、龙江。聚类分析结果表明：长白山和东宁聚为一类，营养品质最佳，综合评价值分别为0.941和0.756；伊春、牡丹江、鹤岗、安达、尚志聚为一类,营养品质中等，综合评价值在0.156~0.462之间；龙江单独聚为一类,营养品质最差，综合评价值为0.151。上述结果可为黑木耳营养品质分析提供一定的技术参考。

关键词: 黑木耳, 营养品质评价, 主成分分析, 聚类分析