Nuts are an important category in the "My Plate" implemented by the National Health Administration. According to the National Nutrition Survey, Chinese people's nut intake is very insufficient. The reason is related to the habit of eating nuts. Eat too much.
There are few kinds of nuts produced in Taiwan. Strictly speaking, there are only peanuts and sesame seeds. Therefore, most of the nuts need to be imported from abroad. Therefore, based on the concept of "eat locally", we can choose to "advertise the place of origin". And nuts produced in well-known producing areas, the quality will be better!
The United States, Australia, etc., of which the United States accounts for more than 70% of the world's production.
Vietnam, Cambodia, India, Brazil, etc., of which Vietnam and Cambodia are the most famous. : China, the United States, etc., of which China's output exceeds 40% of the world's. Turkey, Italy, Greece, etc., among which Turkey accounts for 70% of the world's production. Australia, Hawaii, etc., with Australia as the origin.
Since most of the nuts are imported, it is easy to cause oil oxidation in the nuts after a long time of storage and transportation. Some nut brands advertise that they are harvested and processed in season, which can reduce the time for storage after harvesting, and shorten the time between harvesting and processing, so that the nuts are closer to the freshness of the harvest.
You must have experience with nuts that are very oily and flavorful. In fact, there are many eyebrows from processing to packaging. Most people focus on whether the storage and transportation after processing can maintain freshness, and also pay attention to the issue of shelf life, but ignore the preservation measures at the raw material side..
After harvesting, the quality of agricultural products is easily deteriorated due to temperature. Therefore, cold chains such as field cooling, low-temperature transportation and temperature-controlled packaging are the key points to keep the raw materials fresh. The oil content of nuts is high, so the quality is easily deteriorated by high temperature; if the key preservation measures of the cold chain can be done at the raw material end, of course, better nuts can be given to consumers!
Roasting is an important processing process for nuts to produce aroma and crispness. High-temperature roasting will make nuts more fragrant due to the Mena reaction; however, it relatively destroys some nutrients with high heat sensitivity and promotes the oxidation of oils and fats. , so that the nuts become stale and unsustainable.
Therefore, it is recommended to choose nuts that are "baked at low temperature" to strike a balance between deliciousness, freshness, taste and health, so that we can eat the healthiest nuts.
How to choose to identify the freshest and most suitable nut products?
Whether it is imported or imported, many nut brands will indicate the import source of various nuts on the official website or packaging, and the transparent label will let consumers know that the nuts they buy come from Where, consumers can check the fruit production area written in the previous article or inquire about the fruit production area, and check where the package of nuts in their hands came from.
However, there are still many brands that do not indicate the origin, which actually goes against the current trend of "transparency in production and sales". It is recommended that consumers buy brands with advertised sources, which also drives the food industry to progress.
Nut processing is the key to the freshness of nuts. At present, some companies have begun to advertise their processing methods, and control the temperature and humidity throughout the process. In addition to low-temperature baking, cold chain transportation and storage are the key points, which can also help consumers protect nuts. quality.
When buying nut products, you can check the official website or packaging to see if the key preservation technology is advertised, which is also a representative of maintaining the quality of nuts.
Many people are accustomed to buying a can of nuts at home, but it may take 3 months to eat them. In the long run, the nuts will be at risk of oxidation and even mold.
In addition, it is easy to keep eating canned nuts out of control of intake, resulting in the problem of excessive calorie intake. It is recommended to buy nuts in small packages to maintain freshness and control intake.
The nut bag on the market is about 30 grams, which is about 2 times the recommended amount. If you buy this type of bag, you should eat lightly in your daily diet to avoid the problem of too much oil intake.
, a bag of nuts in a handy bag or a small package is about equal to the recommended amount for one day, and there is no problem of excess, and you can also supplement other nutrients more or less.
After the nuts are roasted and packaged, if they come into contact with air and moisture, the quality will continue to deteriorate, so packaging is the key to maintaining freshness.
First of all, nitrogen filling is a very basic processing method, using nitrogen to squeeze out the oxygen in the original packaginggas, reducing the damage of oxygen to the quality of nuts. However, although the package of nuts is sealed, it is not absolutely airtight, so air and moisture will still enter the package, which will affect the quality of nuts. ; In food packaging, multi-layer technology can be used to improve the air tightness of the packaging bag.
In addition, usually after the nuts are packed with nitrogen, because most of the oxygen is removed, only a pack of desiccant is added to absorb the remaining moisture, but in fact, there will still be air in the subsequent storage and sales process. Therefore, in order to keep it fresher, a pack of deoxidizer should be added to continuously absorb oxygen, so as to minimize the oxidation problem.
Nuts can provide high-quality fatty acids, vitamin E and minerals, but the nutrient content will also be affected by the quality of nuts. In addition to understanding the nutrition of nuts, you must also understand the preservation technology of nuts, not only eating healthy , but also eat fresh.
◎ This article is from / Good Food Class ◎ Written by / Lin Shihang Nutritionist ◎ Image source/Provided by Dazhi Image/shutterstock
No comments:
Post a Comment