Component analysis of nutritionally rich chloroplasts: recovery from conventional and unconventional green plant species
Component analysis of nutritionally rich chloroplasts: recovery from conventional and unconventional green plant species
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DOI：
10.1007/s13197-017-2711-8
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发表时间：
2017-08-01
影响因子：
3.1
通讯作者：
Gray, David A.
中科院分区：
文献类型：
--
作者：
Gedi, Mohamed A.;Briars, Rhianna;Gray, David A.
一项文献研究表明，叶绿体合成一系列分子，其中许多对人类有营养价值，但从植物细胞中回收的叶绿体的营养证书尚未确定。以绿色植物为原料制备了富叶绿体组分（CRFs），并与全叶材料（WLMs）进行了宏、微量营养成分比较。结果表明，在干重基础上，与WLM相比，来自一系列绿色生物质的CRF材料富含脂质和蛋白质，以及一系列微量营养素。CRF制剂中维生素E、维生素A原和叶黄素含量均较高。在矿物中，铁最显著地集中在CRF中。菠菜CRFs的α -生育酚(62 mg 100 g（-1)，干重（DW））、β -胡萝卜素（336 mg 100 g(-1)）和叶黄素（341 mg 100 g(-1)）含量最高，而草CRFs的α -亚麻酸（ALA）浓度最高（69.5 mg g(-1)）。CRFs中较高浓度的α -生育酚、β -胡萝卜素、叶黄素、ALA和微量矿物质（铁和锰）表明，它们可能被用作缺乏这些营养素的食品配方的浓缩成分。
A study of the literature indicates that chloroplasts synthesise a range of molecules, many of which have nutritional value for humans, but the nutritional credentials of chloroplasts recovered from plant cells are not established. Chloroplast-rich-fractions (CRFs) were prepared from green plant species and the macro- and micro-nutrient composition compared with the whole leaf materials (WLMs). The results indicated that, on a dry weight basis, CRF material from a range of green biomass was enriched in lipids and proteins, and in a range of micronutrients compared with the WLM. Vitamins E, pro-vitamin A, and lutein were all greater in CRF preparations. Of the minerals, iron was most notably concentrated in CRF. Spinach CRFs possessed the highest alpha-tocopherol [62 mg 100 g(-1), dry weight (DW)], beta-carotene (336 mg 100 g(-1) DW) and lutein (341 mg 100 g(-1) DW) contents, whilst grass CRFs had the highest concentration of alpha-linolenic acid (ALA) (69.5 mg g(-1)). The higher concentrations of alpha-tocopherol, beta-carotene, lutein, ALA and trace minerals (Fe and Mn) in CRFs suggested their potential use as concentrated ingredients in food formulations deficient in these nutrients.