Bitterness, he said, alerts us to toxins in the food while sourness warns us of spoilage and saltiness signals the presence of some minerals.

他说，苦味提醒我们食物有毒，酸味警告我们食物变质，而咸味表示矿物质存在。

For what they do have access to, spoilage can be a problem.

对于他们能够接触到食物来讲，食物变质也是一个问题。

On the other hand, refrigeration both preserves the shelf life of the butter and reduces the growth rates of spoilage microbes which might be present.

另一方面，冷藏既可以保持奶油保质期，又可以降低可能存在腐败微生物生长速度。

Everything has to be very clean so that you don't get any spoilage or anything out of the ordinary in your fruit.

每样东西都常干净，这样你水果就不会变质或者出现异物。

Our ancestors stumbled on this kind of controlled spoilage thousands of years ago, either by lucky accidents or out of serious desperation, and we humans have been intentionally spoiling food ever since.

我们祖先几千年前无意发现了这种止腐烂方法，或许是幸运巧合，也或是被逼无奈，从此，人类就开始有意地 “放烂” 食物。

Many plastics may contain harmful chemicals that can speed up the maturing process and increase spoilage.

许多塑料可能含有有化学物质，这些物质会加快蔬果成熟，并快速腐坏。

The mission really is to reduce food spoilage due to lack of cold storage at key points along the food supply chain.

我们目实际上是为了减少食品供应链上因缺乏冷藏而导致食物变质。

Then after 12 noon on that intensity of the Nigerian sun, spoilage is being accelerated.

而正午12点过后，在尼日利亚强烈阳光照射下，这些农产品就开始加速腐烂。

Some food items, beef steak for instance, come pre-sterilised with ionising radiation, which helps prevent spoilage.

有些食品，例如牛排，是事先经过电离辐射消毒，这么做有助于止食物变质。

Milk spoilage is started by microbes, which consume and break down the nutrients in milk.

牛奶变质始于微生物作用，它们消耗并分解牛奶中营养成分。

The  constant cool temperature and high humidity were ideal for ageing and preventing  spoilage.

恒定低温和高湿度常适合奶酪陈年和止变质。

That's the hope of a team of researchers who have developed a paper sensor containing nanostructures that change color when they bind to compounds that indicate spoilage such as free radicals or food contaminants we can't see or smell.

这是研究团队希望，他们开发了一种含有纳米结构纸张传感器，当这些纳米结构与自由基或我们看不见或闻不到食物污染物等表明变质化合物结合时，会改变颜色。

Fresh foods: produce with a two-day shelf life such as fruit and vegetables are refrigerated onboard the spacecraft and consumed quickly to avoid spoilage.

新鲜食品：水果和蔬菜等保质期为两天农产品在航天器上冷藏， 并迅速食用以避免变质。

Because it's wasted through spoilage, because we lack the infrastructure, the cold chain systems, the distribution systems, we can't get stuff to market.

因为这些产品因变质而浪费，因为我们缺乏基础设施、冷链系统和分销系统，我们无法将产品送到市场上。

We had no mechanical refrigeration and so there was a lot of spoilage problems. People could get tuberculosis from milk.

我们没有机械制冷，因此存在很多变质问题。人们可能会从牛奶中感染结核病。

All of these ingredients come stable, ready to use, and can last for weeks with very low risk of spoilage.

所有这些原料都已稳定，可以即刻使用， 并且可以在几周内保存， 几乎不会变质。

Nicholas, that original canning guy, he At first, it was the presence of air itself that led to spoilage.

尼古拉斯，那位最初罐头制作人，最初导致变质是空气本身存在。

The use of preservatives in food can extend its shelf life and prevent spoilage.

食品中使用腐剂可以延长其保质期并止变质。

Removing the water from the food or drink makes it difficult for bacteria to multiply and dramatically extends the product's shelf-life and reduces the chance of spoilage.

去除食物或饮料中水分可使细菌难以繁殖， 从而显着延长产品保质期并减少变质机会。

The fresh towels ready for spoilage, the wastebaskets gaping their invitations, beckoning in the careless junk.

干净毛巾已经准备好变质了，废纸篓张开了邀请函，在粗心垃圾中招手。