Olive leaves offer more than phenolic compounds - Fatty acids and mineral composition of varieties from Southern Brazil
Olive leaves offer more than phenolic compounds - Fatty acids and mineral composition of varieties from Southern Brazil
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DOI：
10.1016/j.indcrop.2015.03.054
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发表时间：
2015-09-01
影响因子：
5.9
通讯作者：
Barin, Juliano Smanioto
中科院分区：
文献类型：
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作者：
Cavalheiro, Caroline Viegas;Picoloto, Rochele Sogari;Barin, Juliano Smanioto
在巴西南部种植的橄榄叶的化学成分进行了评估，关于近似组成，总酚类化合物，脂肪酸配置文件，和宏量和微量元素。对于品种Aesthano，Arbosana，Negrinha do Freixo，Koroneiki和Grappolo，灰分，蛋白质，脂肪和总碳水化合物的浓度范围分别为4.37%至6.00%，10.50%至13.10%，9.13%至9.80%和8.74%至32.63%。乔木属中总酚含量最高（35.71 mg GAE g（-1）），饱和脂肪酸含量最高（37.26%，主要是棕榈酸）。所有品种的油酸（从19.80%到21.50%）、亚油酸（从6.84%到8.26%）和亚麻酸（从34.40%到41.30%）浓度相似。在橄榄叶中发现的高含量的亚麻酸将这种副产品变成除了酚类化合物之外的n-3 PUFA（亚麻酸）的有趣来源。在所研究的品种中观察到较高浓度的矿物元素是Al、Ca、Fe、K、Mg、P和S。然而，如果考虑每日推荐摄入量为50克的叶子，铁的摄入量达到了推荐剂量，而铜的摄入量超过了所有品种的推荐值。结果表明，这些品种的组成，可用作食品中的补充剂或喂养动物，并增加其产品的营养价值的重要性。(C)2015 Elsevier B. V.版权所有。
The chemical composition of olive leaves cultivated in Southern Brazil was evaluated regarding proximate composition, total phenolic compounds, fatty acids profile, and macro- and microelements. For the varieties Ascolano, Arbosana, Negrinha do Freixo, Koroneiki, and Grappolo the concentrations of ash, protein, lipid, and total carbohydrates ranged from 4.37% to 6.00%, 10.50% to 13.10%, 9.13% to 9.80%, and 8.74% to 32.63%, respectively. Arbosana was the variety with the highest concentration of total phenolic compounds (35.71 mg GAE g(-1)), and the higher concentration of saturated fatty acids (37.26%, mainly palmitic acid). All varieties presented similar concentrations of oleic (from 19.80 to 21.50%), linoleic (from 6.84 to 8.26%), and linolenic (from 34.40 to 41.30%) acids. The high content of linolenic acid found in olive leaves turns this by-product into an interesting source of n-3 PUFA (linolenic acid) in addition to phenolic compounds. The mineral elements observed in higher concentrations in the varieties studied were Al, Ca, Fe, K, Mg, P, and S. However, if the recommended daily intake is considered for consumption of 50 g of leaves, the amount of Fe consumed reached the recommended dose while the amount of Cu exceeds the recommended value for all varieties. The results showed the importance of the constitution of these varieties, which could be used as supplements in food or to feed animals and increase the nutritional value of their products. (C) 2015 Elsevier B.V. All rights reserved.