怎样用英语介绍核桃

如题所述

第1个回答  2013-09-27
可参考:

http://wenku.baidu.com/view/8f5243dfa58da0116c174986.html

来介绍。追问

😓

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追问

发过来呗

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好的。你的邮箱?

Alph-LinolenicAcid
Unique among nuts, walnuts contain thehighest amount of alpha-linolenic acid (ALA), the plant-based omega-3 essentialfatty acid , required by the human body. As one of the best plant food sourcesof omega-3s, a one-ounce serving of walnuts provides 2.5 grams of ALA. Agrowing body of science is beginning to uncover a variety of benefits thatALA/omega-3s may provide to our bodies. While most nuts contain monounsaturatedfats, only walnuts are comprised primarily of polyunsaturated fat (13 grams outof 18 grams total fat). Dietary guidelines recommend that people keep total fatintake between 20 to 35 percent of calories, with most fats coming from sourcesof polyunsaturated and monounsaturated fatty acids.

亚麻酸
在所有坚果中,核桃是独一无二的,它包含有最高的亚麻酸,来源于植物的人体必需的omega-3不饱和脂肪酸。作为最好的omega-3脂肪酸的来源之一,一盎司核桃含有2.5克得亚麻酸。随着科技的发展,亚麻酸对人体的好处越来越多地被发现。大多数坚果含有单一不饱和脂肪,只有核桃主要由多元不饱和脂肪组成(18克脂肪中中含有13克)。饮食指导推荐人们摄入的脂肪总量占所有卡路里的20-35%,它们多来自单一不饱和脂肪酸和多元不饱和脂肪酸。

第2个回答  2013-09-27
英文版维基百科 http://en.wikipedia.org/wiki/Walnut追问

一分钟的简短介绍啊

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课后作业吗?

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嗯嗯是啊下午就用了

第3个回答  2013-09-27
A walnut is an edible seed of any tree of the genus Juglans, especially the Persian or English walnut, Juglans regia. Broken nutmeats of the eastern black walnut from the tree Juglans nigra are also commercially available in small quantities, as are foods prepared with butternut nutmeats from Juglans cinerea.
Walnut seeds are a high density source of nutrients, particularly proteins and essential fatty acids. Walnuts, like other tree nuts, must be processed and stored properly. Poor storage makes walnuts susceptible to insect and fungal mold infestations; the latter produces aflatoxin—a potent carcinogen. A mold infested walnut seed batch should not be screened and then consumed; the entire batch should be discarded.[1]

Walnut seed shell inside its green husk
Walnuts are rounded, single-seeded stone fruits of the walnut tree. The walnut fruit is enclosed in a green, leathery, fleshy husk. This husk is inedible. After harvest, the removal of the husk reveals the wrinkly walnut shell, which is in two halves. This shell is hard and encloses the kernel, which is also made up of two halves separated by a partition. The seed kernels — commonly available as shelled walnuts — are enclosed in a brown seed coat which contains antioxidants. The antioxidants protect the oil-rich seed from atmospheric oxygen thereby preventing rancidity.[1]
The two most common major species of walnuts are grown for their seeds — the Persian or English Walnut and the Black Walnut. The English Walnut (J. regia) originated in Persia, and the Black Walnut (J. nigra) is native to eastern North America. The Black walnut is of high flavor, but due to its hard shell and poor hulling characteristics it is not grown commercially for nut production. The commercially produced walnut varieties are nearly all hybrids of the English walnut.[2]
Other species include J. californica, the California Black Walnut (often used as a root stock for commercial breeding of J. regia), J. cinerea (butternuts), and J. major, the Arizona Walnut.
Walnuts are late to grow leaves, typically not until more than halfway through the spring. They also secrete chemicals into the soil to prevent competing vegetation from growing. Because of this, flowers or vegetable gardens should not be planted too close to them.
The husks of walnut contain a juice that will readily stain anything it comes into contact with. It has been used as a dye for cloth.本回答被提问者采纳
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