What is fruit processing? Come and see Gofun
August 18, 2022
China's fruit processing industry has a long history. As early as the 5th century BC, natural drying or simple artificial heating methods have been used to make dried fruits. The "Qi Min Yao Shu" written by Jia of the Northern Wei Dynasty has detailed records on the drying method of jujube, including the manual drying method of persimmon. Candied fruit and candied fruit are traditional foods in my country, which are recorded in the "Book of Songs" of the Western Zhou Dynasty. There is a detailed record of "carved candied fruit" in "Wulin Old Stories", which was carefully written in the Southern Song Dynasty. The "Compendium of Materia Medica" written by Li in the Ming Dynasty summarized the processing method of candied fruit as "exposing salt, storing sugar, and frying honey for fruit". According to the records of books such as "Historical Records of the Liao Dynasty" and "Geography", preserved apricots, peaches, apples, and preserved fruits in Beijing's history were more famous.
Since the early 1940s, quick freezing has been a superior process for preserving juices and juice concentrates and has begun to replace pasteurization. Fruit quick freezing has a history of about 50 years and is a young technology in the food industry.
With the development of fruit production bases, the development and utilization of wild fruit resources, such as kiwi fruit, sea buckthorn, jujube, prickly pear, apricot, hawthorn, passionflower, etc., the selection and breeding of processed varieties (such as peach, orange, grape, pineapple, etc.) , introduction and promotion, transformation and introduction of fruit processing equipment and processing technology, and continuous development of fruit processing industry.
Material selection The selection of fruit processing raw materials is considered from the aspects of yield, supply period, storage period, proportion of edible parts, physical properties, chemical composition and sensory quality. The tissue structure and chemical composition of the fruit depend on the type and maturity of the raw material. The high yield, processing suitability and harvest time of the fruit are directly related to the variety. In general, processed ingredients require good fruit flavor, normal flavor, multiple edible portions, proper size and ripeness. Due to different processing methods and processing purposes, the requirements for raw materials are also different. For the production of canned fruit in syrup, it is recommended to choose fresh, good fruit with appropriate sugar-acid ratio, thick flesh, tight texture, delicate and heat-resistant fruit. The maturity requirement is slightly lower than that of fresh food (about 8 to 9 maturity). When making juices and wines, it is advisable to use raw materials that are juicy, moderately sweet and sour, and rich in flavor. For example, snow oranges, golden oranges, Fuling summer oranges, Concord grapes, solute peach, etc. can be made into fruit juice; red oranges, citrus, sweet oranges, grapes, hawthorn, etc. can be used to make fruit wine. The raw materials for jam production require high pectin and acid content and bright colors, such as apricot, hawthorn, citrus, apple, etc. The production of preserved fruit and candied fruit requires the selection of fruits with low water content, high sugar content, soft texture, thick meat, small core, less fiber, storage and transportation resistance, and high temperature cooking resistance, such as Guoguang and ruby in apples. Fruits for freezing require high adaptability to cryopreservation, with outstanding flavor and color.
Processing methods and products Common fruit processing methods include the drying method of direct dehydration of fruits, the sugar storage method of pickling fruits with sugar, the canning method of processing fruits into cans, the quick freezing method of low-temperature frozen fruits and the brewing method of fermented fruits. Corresponding dried products, sugar storage products, canned products, frozen products and fermented products are prepared by various methods. Shanghai Guofeng Machinery Equipment Co., Ltd. has been researching the fruit processing industry for many years, and you are welcome to come and choose.