引进和杂交两类沙棘果实β-胡萝卜素含量测定分析

Determination and Analysis of Fruits β-Carotene Contents of Introduced and Hybrid Seabuckthorn

摘要: 为了系统掌握引进沙棘和杂交沙棘果实的β-胡萝卜素含量，对“三北”地区的黑龙江、辽宁、甘肃、青海和新疆5地的沙棘果实于2017年采摘后，立即采用紫外分光光度计做了测定分析，结果表明：干全果β-胡萝卜素含量平均值，引进沙棘为32.92 mg/100g，而杂交沙棘为35.70 mg/100g，较引进沙棘高8%，两类间平均值较为接近；引进沙棘干全果β-胡萝卜素含量，以甘肃最高，达43.97 mg/100g，为含量最低的青海的2.18倍；杂交沙棘干全果β-胡萝卜素含量，以辽宁最高，达47.41 mg/100g，为含量最低的青海的1.98倍。产自青海的两类引进和杂交沙棘干全果β-胡萝卜素含量在各试点间均为最低。引进沙棘和杂交沙棘果实的生物活性成分很多，功能也多种多样，β-胡萝卜素含量方面所做的一些测试分析，将为全面衡量沙棘果实营养成分、开展有关开发利用以及确定合理育种方案等都提供科学依据。

Abstract: In order to systematically master the β-carotene content of seabuckthorn fruits, fruits of intro-duced and hybrid seabuckthorn in Heilongjiang, Liaoning, Gansu, Qinghai and Xinjiang in the “Three North” areas of China were measured and analyzed by UV spectrophotometer immediately after picking in 2017. The results showed that the average dry whole fruit β-carotene content of introduced seabuckthorn was 32.92 mg/100g and that of hybrid seabuckthorn was 35.70 mg/100g, which was 8% higher than that of introduced seabuckthorn; the β-carotene content of dried whole fruit of introduced of seabuckthorn in Gansu was the highest, up to 43.97 mg/100g, which was 2.18 times than that in Qinghai; the β-carotene content of dried whole fruit of hybrid seabuckthorn in Liaoning was the highest, up to 47.41 mg/100g, which was 1.98 times than that in Qinghai. The contents of β-carotene of two kinds (introduced and hybrid) of dried whole fruits of seabuckthorn from Qinghai were the lowest among the experimental sites. The introduced seabuckthorn and hybrid seabuckthorn fruits have many bioactive components and a lot of functions; those tests and analysis on β-carotene content would provide a scientific basis for comprehensively measuring the nutritional components of seabuckthorn fruits, carrying out relevant development and utilization of them, and determining a reasonable breeding skeleton frame for seabuckthorn.