南京林业大学学报（自然科学版）2017，Vol.41Issue(6)：193-198,6.DOI:10.3969/j.issn.1000-2006.201610020
云南省主栽核桃与美国山核桃品种营养成分分析
A comparative study on quality characteristics of main walnut and pecan varieties in Yunnan Province
摘要
Abstract
[Objective] The purpose of the present study was to compare the quality of walnut and pecan varieties cul-tured in Yunnan and to establish a theoretical foundation for the deep processing of walnuts and pecans in Yunnan.[Method]The main nutritional components of kernels from 40 representative varieties (divided into four groups based on the similarity analysis) were evaluated using a Soxhlet extraction apparatus, Kjeldahl apparatus, GC-MS and atomic ab-sorption spectrometer. [Reult]The crude fat content (mass fraction) of walnut and pecan varieties ranged from 52.11%to 71.77%, with the highest level observed in 'Mississippi No. 10' in pecan variety No. 38. The varieties in Group Ⅰand Group Ⅱ had greater advantages. Meanwhile, the Zn, Fe and Ca contents (mass fraction) ranged from 0.0048 to 0. 1090 mg/ g, from 0.0098 to 0.1928 mg/ g, and from 0.2548 to 0.6517 mg/ g, respectively. The kernels of the Group I varieties were rich in Zn and Fe, whereas those of the Group Ⅱ varieties were rich in Ca. The kernels of the Group Ⅰ varieties were also superior in regards to myristic, oleic and arachidic acid levels, whereas those of the GroupⅡ varieties were superior in regards to lauric, palm, linoleic, linolenic and arachidonic acid levels; those of Group Ⅲvarieties were superior in regards to palm and stearic acid levels; and those of the Group Ⅳ varieties were superior in re-gards to behenic acid level. [Conclusion] Walnut and pecan are ideal source of edible oil. Varieties that have higher protein contents and lower oil contents can be used as protein beverages and peptides. The walnut varieties 'Dali yang-pao', 'Jinhua' and pecan variety 'Mississippi No. 10' are valuable sources of trace elements and can be used to de-velop Fe-, Zn-, and Ca-rich walnut protein or protein powders with nutrition and health functions.关键词
核桃/美国山核桃/品种/粗脂肪/蛋白质/微量元素/脂肪酸/云南Key words
walnuts/pecan/varieties/crude fat/protein/trace element/fatty acid/Yunnan Province分类
农业科技引用本文复制引用
耿树香,宁德鲁,李勇杰,陈海云,肖良俊..云南省主栽核桃与美国山核桃品种营养成分分析[J].南京林业大学学报（自然科学版）,2017,41(6):193-198,6.基金项目
云南省林业厅木本油料创新项目(20140CX06 （）
[2014]CX01) （）
