枸杞营养品质时空变化规律及特征分析
Spatial and temporal variation of nutritional quality and its characteristics of wolfberry
聂芳 1琚艳君 2陈卓雅 1刘敏 2刘河疆 2刘志虎 3开建荣 4苟春林 4赵多勇2
作者信息
- 1. 新疆农业大学食品科学与药学学院,乌鲁木齐 830052;新疆农业科学院农业质量标准与检测技术研究所/农业农村部农产品质量安全风险评估实验室(乌鲁木齐)/新疆农产品质量安全重点实验室,乌鲁木齐 830091
- 2. 新疆农业科学院农业质量标准与检测技术研究所/农业农村部农产品质量安全风险评估实验室(乌鲁木齐)/新疆农产品质量安全重点实验室,乌鲁木齐 830091
- 3. 酒泉市林果服务中心,甘肃酒泉 735000
- 4. 宁夏农产品质量标准与检测技术研究所,银川 750002
- 折叠
摘要
[目的]研究枸杞品质时空变化规律、特征及影响因素,为枸杞品种培优、品质提升、品牌打造及标准化生产提供依据.[方法]连续3 年(2020～2022 年)采集新疆、宁夏、甘肃三个主产区的 224 份枸杞果实样品,同时测定多糖、总黄酮及16 种氨基酸的含量,分析产地、年际、品种及其交互作用下枸杞品质的时空变化规律,结合方差分析、主成分分析(PCA)等方法筛选特征品质指标,分析各影响因子对特征营养品质指标的影响规律.[结果]不同产区枸杞果实营养品质均表现出显著的年际差异(P<0.05),并与枸杞品种显著相关(P<0.05).枸杞多糖含量主要受产地因子的影响最大,变异贡献率为6.79%;而枸杞总黄酮主要受年际因子的影响最大,变异贡献率为 58.53%,其中新疆枸杞的多糖和总黄酮含量显著高于其他两个产区(P<0.05),优质品种为宁杞1 号,相比之下甘肃枸杞中的多糖、总黄酮含量显著低于新疆产区(P<0.05).其次年际和品种是影响枸杞总氨基酸的主要因素,变异贡献率分别为 21.40%、15.99%,宁夏产区枸杞呈现多种氨基酸较高的特征,宁杞5 号为优势品种.[结论]同为宁夏引进枸杞品种,在不同产地种植时会呈现出不同的产地特征.新疆枸杞整体呈现出多糖、总黄酮较高的特征,宁夏枸杞呈现出总氨基酸较高的特征,而甘肃枸杞表现出多糖、总黄酮相对较低的特征.
Abstract
[Objective]The purpose of this study is to analyze the spatio-temporal variation,characteris-tics,and its influencing factors of the quality of wolfberry,so as to provide evidence for excellent variety breed-ing,quality improvement,brand building and standardized production of the fruit.[Methods]224 fruit sam-ples were collected from Xinjiang,Ningxia and Gansu Province for three consecutive years(2020-2022)and then the contents of polysaccharide,total flavone and 16 kinds of amino acids were determined.Afterwards,the spatio-temporal variation of wolfberry quality under geographical origin,interyear,variety and their interaction were analyzed.Finally,combined with variance analysis,principal component analysis(PCA)and other meth-ods were applied to screen the feature quality indicators and clarify the influence of each factor on the feature quality indicators.[Results]The nutritional quality of wolfberry fruit in different regions showed significant difference between years(P<0.05),and was significantly correlated with wolfberry varieties(P<0.05).The content of wolfberry polysaccharide was mainly affected by the origin factors,and the variation contribu-tion rate was 6.79%.The total flavonoids of wolfberry were mainly affected by interannual factors,and the vari-ation contribution rate was 51.84%.The contents of polysaccharides and total flavonoids in Xinjiang were sig-nificantly higher than those in the other two producing areas(P<0.05).The high quality variety was Ningqi No.1.In contrast,the content of total flavonoids and polysaccharide in Gansu wolfberry was significantly lower than that in Xinjiang(P<0.05).Secondly,variety and year were the main factors affecting the total amino acids of wolfberry,and the variation contribution rates were 21.40%and 15.99%,respectively.The high-quality amino acid producing area was Ningxia,and the high-quality variety was Ningqi 5.[Conclusion]The same varieties of wolfberry introduced in Ningxia will show different characteristics in different places of culti-vation.Wolfberry in Xinjiang showed relatively high polysaccharides and total flavonoids,Ningxia showed rela-tively high total amino acids,and Gansu showed relatively low polysaccharides and total flavonoids.
关键词
枸杞/营养品质/产地/品种/年际Key words
wolfberry/nutrition quality/geographical origin/varieties/interannual factor引用本文复制引用
基金项目
新疆维吾尔自治区资源共享平台建设项目(PT2312)
新疆维吾尔自治区重点研发专项子课题(2023B02009-4)
新疆农科院青年科技骨干创新能力培养项目(xjnkq-2020013)
新疆农科院青年科技骨干创新能力培养项目(xjnkq-2023018)
甘肃省科技计划(21CX6NF234)
宁夏回族自治区重点研发计划(2021BEF03003)
宁夏回族自治区自然科学基金(2021AAC03281)
出版年
2024
国家科技期刊平台
NSTL
万方数据