Kiwi drying
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Kiwifruit, also known as kiwi, fox peach, vine pear, sheep peach, wood seed, hairy wood fruit, and hemp vine fruit, is widely distributed in the hills and mountains of southern China. China is the origin of kiwifruit, and the famous kiwifruit hometowns are distributed in Fengxin County, Jiangxi Province, Zhouzhi County, Xi'an City, Mei County, Baoji City, Cangxi County, Sichuan Province, Xixia County, Nanyang City, Jiangshan City, Zhejiang Province, Fenghuang County, Xiangxi County, Yongshun County, Heping County, Guangdong Province, and Xiuwen County, Guizhou Province. Nutritionists say that kiwifruit is a fruit with rich nutritional value and multiple functions, and is called the king of fruits.
Dried kiwi fruit is rich in minerals, including calcium, phosphorus, iron, carotene and multiple vitamins, and contains excellent dietary fiber and rich antioxidants. It can clear away heat and reduce fire, moisturize and relieve constipation, lose weight and bodybuilding, fade dark spots, and improve skin. Dried kiwi fruit is also rich in arginine, which can effectively improve blood flow and prevent the formation of blood clots. It has special effects on reducing the incidence of cardiovascular diseases such as coronary heart disease, hypertension, myocardial infarction, arteriosclerosis, and treating impotence. In addition, dried kiwifruit contains a large amount of natural sugar alcohol substance inositol, which can effectively regulate sugar metabolism, regulate hormones in cells and nerve conduction effects, and has unique effects on preventing diabetes and depression; it also contains rich folic acid, which can prevent neural tube defects in embryonic development, and is a popular healthy green fruit. To mass-produce dried kiwifruit and make delicious kiwifruit preserves, a professional kiwifruit preserve dryer is needed to improve the appearance, taste and market value of the preserves and reduce energy consumption, which is conducive to improving the benefits of kiwifruit growers.
Kiwifruit processing steps:
(I) First, the kiwifruit preserve production process is divided into material selection → cleaning → alkali immersion → neutralization → rinsing → slicing → drying → finished product. 
In the preparation stage, pay attention to selecting intact fruits, free of pests and damage as raw materials, and then clean them. In the production process, first use alkali soaking: soak with 20% sodium hydroxide solution at about 105℃ (slightly boiling) for 1 to 2 minutes. Then neutralize with 1% hydrochloric acid at room temperature for 30 seconds. Rinse in running water for 10 minutes and drain. In the drying process, first cut off the two ends of the kiwi fruit, trim the remaining peel, and then cut it into thin slices 4 to 6 mm thick. Evenly place the materials on the material cart, then adjust the drying temperature to 65-75℃ for about 20-24 hours. When the moisture content of the finished product reaches below 20%, take it out for cooling and packing.
(II) Kiwi fruit dryer has the above characteristics:
(1) Heat pump dryer can provide a milder drying environment on the one hand, and on the other hand, higher controllability and supporting control system can adopt the most appropriate drying strategy for the material, so it can provide better drying quality. Kiwi fruit dryer will not have drying defects such as deformation, cracking, surface hardening, and color darkening.
(2) Low operating cost The operating cost of high-temperature heat pump is comparable to that of fuel oil and coal; about 40% lower than fuel oil (gas); and 50% lower than pure electric energy-consuming equipment.
(3) Green and environmentally friendly The use of special high-temperature refrigerant does not pollute the environment and fully complies with national health standards.
(4) Safe and reliable The lack of any electric heating device fundamentally eliminates the occurrence of leakage accidents in ordinary electric heating dryers, and will not cause hypoxia, poisoning, explosion and other dangers when used in a closed space like gas, fuel oil and coal hot air heating systems.
(5) High degree of intelligence and high stability. The primary requirement for industrial high-temperature heat pumps is reliable quality and stable operation! In order to meet the customer's requirements for continuous production. Therefore, the high-temperature heat pump is precisely designed and strictly controlled in the control and protection of important parameters such as the compressor's exhaust pressure, exhaust temperature, overcurrent, overheating, and overload to ensure that the heat pump system operates under stable and reliable safe conditions.
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