Method for drying oil-tea camellia seed
A drying method and technology of camellia oleifera seeds, which are applied in the directions of drying solid materials, heating to dry solid materials, drying, etc., can solve the problems of being unsuitable for large-scale industrial production, poor storage quality of camellia oleifera seeds, and long drying time, and achieve Ease of control, reduced refining process, and easy operation
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[0017] Example 1
[0018] The harvested fresh camellia oleifera fruit is selected to remove impurities contained in the camellia oleifera fruit, moldy oleifera fruit and damaged by disease and insect pests. Place the selected camellia oleifera fruit at room temperature and control the relative humidity to 75%. The oil content of the camellia seed will be significantly increased after 10 days of heaping treatment, and the camellia husk can be easily removed after heaping treatment. The camellia seeds are dried with hot air, and the camellia seeds are dried at a temperature of 55℃ and a bulk density of 320kg / m 3 Spread it flat and dry it for 15 hours to make the water content of the oil tea seed reach below 10%. The dried oil-tea camellia seeds were stored at room temperature for 8 months. After 8 months of storage, the acid value and peroxide value of oil in the oil-tea camellia seeds increased by 0.34mgKOH / g and 0.86mmol / kg respectively compared with the initial storage , It sho...
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[0019] Example 2
[0020] The harvested fresh camellia oleifera fruit is selected to remove impurities contained in the camellia oleifera fruit, moldy and disease-injured oleifera fruit. Place the selected camellia oleifera fruit at room temperature, control the relative humidity to 75%, do not pile or pile separately for 2, 4, 6, 10, 12, 14 days, and other process conditions are the same as in Example 1. Table 1 shows the results of increasing the oil content of camellia seeds.
[0021] Table 1 Changes in the main components of camellia seeds after different heaping times
[0022] Retting days (d)
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[0023] Example 3
[0024] The harvested fresh camellia oleifera fruit is selected to remove impurities, moldy, and disease-damaged camellia oleifera fruit. Place it at room temperature, control the relative humidity to 75%, and pile it up for 12 days to remove the camellia husk. Different temperatures are used for hot air drying, and the bulk density is 320kg / m 3 Spread flat, dry for 13 hours, determine the relationship between drying temperature and moisture content, see attached figure 1 Shown. Attached figure 1 Among them, the curves 1, 2, and 3 are the experimental results under the temperature conditions of 55℃, 70℃ and 90℃ respectively.
[0025] By the attachment figure 1 It can be seen that the moisture content of Camellia oleifera seeds decreases rapidly with the extension of the drying time at the early stage of drying, and the decline of the moisture content at the later stage of drying slows down. The higher the drying temperature, the faster the moisture content of th...
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