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出口南瓜子营养成分分析与质量评价

2017-08-13冯舒倪彦博孙皎

安徽农业科学 2017年3期

冯舒 倪彦博 孙皎

摘要[目的]为出口南瓜子的质量研究提供科学系统的评价方法。[方法]以4种出口南瓜子为研究对象,对其营养成分和矿物质含量进行测定,并利用显微鉴别、气相色谱、高效液相色谱等方法对其质量进行评价。[结果]南瓜子品种艾碧斯红栗营养成分和矿物质元素综合指标均居于首位,其含47.50%的粗脂肪、34.58%的粗蛋白、65.65%的多糖;K、Mg、P、Ca等含量均较高;气相色谱和液相色谱分析结果均显示艾碧斯红栗中含有油酸、亚油酸和亚麻酸等不饱和脂肪酸,总含量达82.18%。[结论]该研究对开发降压降脂、抗炎、抗衰老保健食品有重要意义。

关键词 出口南瓜子;营养成分分析;质量评价

中图分类号 S642.1 文献标识码 A 文章编号 0517-6611(2017)03-0095-03

Abstract[Objective] To provide scientific and systematic evaluation method for quality research of export pumpkin seeds. [Method] With four kinds of export pumpkin seeds as the research object, the content of nutrients and minerals were measured, and quality was evaluated by using microscopic identification, GC, HPLC methods. [Result] Mr. Biggs red chestnut nutrient and mineral element comprehensive indexes were in the first place, which contains 47.50% crude fat, 34.58% crude protein, 65.65% polysaccharides;K, Mg, P and Ca contents were the highest;Gas chromatography and HPLC analysis results showed that Mr. Biggs red chestnut contains oleic acid, linoleic acid, linolenic acid and other unsaturated fatty acids, total content reached 82.18%. [Conclusion] It has important significance in development of antihypertensive lipid, antiinflammatory, antiaging health care food.

Key words Export pumpkin seeds;Nutritional analysis;Quality evaluation

南瓜是葫芦科南瓜属草本植物,在我国种植范围广,种类繁多,主要集中于华中地区。南瓜子(Semen cucurbitae)是南瓜成熟的种子,又有“白瓜子”“金瓜子”之称[1-2]。大量研究显示,南瓜子中含有丰富的不饱和脂肪酸、氨基酸、多糖、多肽、甾醇、维生素和矿物质等,可补充营养,同时具有降脂降压、抗炎、抗病毒、抗衰老和抗寄生虫的药理功效,且毒性很小,已被公认为特效保健食品,具有广阔的开发应用前景[3-10]。目前关于南瓜子系列产品的研发及质量评价体系还不完善,因此,笔者对出口南瓜子的营养成分和质量评价标准进行研究,以期为今后开发保健食品和药品提供理论依据。

1 材料与方法

1.1 材料

供试4种出口南瓜子甜栗王、香栗23、艾碧斯红栗、蜜本1号均由佳木斯出入境检验检疫局提供。……

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