Sweet potato is one of the world's major food crops and one of the four major crops in China. China is still in its infancy in the research and comprehensive development of the sweet potato utilization project. Most of the sweet potato products stay in the rough processing of sweet potato, sweet potato vermicelli and sweet potato starch. The value that sweet potato is not well known to most people is its important use in medicine, food, chemical industry, etc. It is an important industrial raw material crop, a new energy crop and a natural feed crop. Deep processing of high-quality sweet potato starch into modified starch is a bright spot in the comprehensive development of sweet potato.
Compared with the original starch, the starch deep processed by the modern technology has transparency, high viscosity, anti-aging, good physical stability and good water retention performance. It is widely used in food, pharmaceutical, chemical and other industries. At present, the demand for various deep-processed sweet potato starch in the domestic market is over one million tons, while the national output is less than half. As a modified starch (acid-modified starch, oxidative degeneration powder and carboxyalkyl modified starch) that is in high demand in the food, paper, textile, petroleum and other industries, China's annual demand is over 4 million tons. Only the instant noodle market requires nearly 300,000 tons. The country's output is only over 100,000 tons, and the rest are imported. Therefore, there is a very large market space in the use of sweet potato to process modified starch.
In addition, the sweet potato comprehensive development project also includes: development of fully degradable non-toxic and harmless agricultural mulch film and packaging materials, development of natural pigments, snack foods, functional beverages, protein feeds and bio-polysaccharides, proteins, flavonoids, polyphenols series products. The development of high-tech industrialization of sweet potato comprehensive processing will effectively promote the development of animal husbandry, feed industry, food processing industry, biomedicine, chemical industry and machinery industry in the majority of sweet potato producing areas, and form a benign development of a multi-industry situation. It has both good social benefits and significant economic benefits.
Sweet potato is deeply loved by people and is one of the world's major food crops. It is also one of the four major crops in China. It is suitable for planting in many areas of China. However, for a long time, many farmers' friends are not willing to grow sweet potatoes. First, because sweet potatoes are cheap and difficult to preserve; secondly, most of them are used for fresh food after harvest, and it is a pity to eat waste. Farmers often sell sweet potatoes directly to the market for sale, which is inconvenient to transport and inexpensive. In this case, many people have turned their eyes to the sweet potatoes production process.
Sweet potato starch demand
At present, the demand for sweet potato starch in the domestic market alone is more than 1 million tons, while the sweet potato starch production line is small, and the production volume is far less than this figure. With the change of people's dietary consumption concept, the market demand for sweet potato starch will become larger and larger, and the space for planting sweet potato and the processing space for starch will become larger and larger. Due to the wide use of products, low raw material prices, and large value-added space for processing and development, the prospect of sweet potato starchprocessing industry is promising.
Sweet potato fans sell well
Fans are a traditional food in our country, and in the past few years there has been a new product in the fan market – sweet potato fans. It is made from sweet potato as the main raw material. Now the price of sweet potato is about 0.2 yuan / kg, and a small bag of sweet potato fans can sell for two or three yuan, the price is a dozen times higher. The deep processing of sweet potatoes into fans can not only achieve relatively high economic benefits, but also solve a series of problems such as the difficulty of farmers selling potatoes.
At present, sweet potato convenience fans have been exported to Europe, America, Australia and Southeast Asia, and now this product is gaining momentum. The development prospects are very broad.
Sweet potato is more widely used
Generally, the output value of traditional sweet potato cultivation is only about 900 yuan. After the sweet potato has been processed into starch, fans and other products, the value will be greatly improved. China is still in its infancy in the research and comprehensive development of the sweet potato utilization project. Most of the sweet potato products stay in the rough processing of sweet potato, sweet potato vermicelli and sweet potato starch. It is understood that the production of sweet potato starch in China can only be supplied for consumption, and real development has much to offer.
The value that sweet potato is not well known to most people is its important use in medicine, food, chemical industry, etc. It is an important industrial raw material crop, a new energy crop and a natural feed crop.