Using rutin as the standard sample, total flavonoid content in purple sweet potato for food packaging paper dying was determined by Vis-and UV-spectrophotometry.

以芦丁为标准样品，比较了可见光及紫外光分光光度法测定食品包装纸用色素紫甘薯总黄酮的方法。

youdao

Since my appointment today is to discuss my term paper topic, I wanted to ask, could I write about food packaging?

由于我今天跟您约的是讨论我的学期论文主题，所以我想问一下，我可以写关于食品包装的主题吗？

youdao

Nevil Gibson, the editor of New Zealand’s National Business Review, sees his latest moves as a logical progression from paper up the value chain into the higher-margin world of food packaging.

新西兰国家商业评论的编辑内维尔•吉布森（Nevil Gibson）将他最近的动作理解为符合逻辑的进程，从造纸上溯到价值链中高收益的食品包装产业。

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In the late nineteen thirties, he started to collect small pieces of paper including food paper packaging, paper cups and book pages.

VOA: special.2010.04.14

He graduated from Harvard Business School in 1965 and married Myra Hiatt, whose father, Jacob, owned Rand-Whitney, which converted paper into packaging for cosmetics, food and toys.

FORBES: Magazine Article