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

Inactive Publication Date: 2010-12-01
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the shortcomings of the current drying technology of camellia oleifera seeds, and provides a new drying method of camellia oleifera seeds, which effectively solves the problems of lo

Method used

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  • Method for drying oil-tea camellia seed
  • Method for drying oil-tea camellia seed
  • Method for drying oil-tea camellia seed

Examples

Experimental program
Comparison scheme
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Example Embodiment

[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...

Example Embodiment

[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)

Example Embodiment

[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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Abstract

The invention discloses a method for drying oil-tea camellia seed. Harvested fresh oil-tea camellia seed is used as a raw material and is subjected to stack retting and drying, so that the oil-tea camellia seed is controlled to meet the requirement of storing moisture safely at the room temperature. The oil-tea camellia seed dried by adopting the method of the invention has the advantages of high quality, high oil yield, good quality of crude oil, good storage performance, long storage time, capability of reducing the oxidation of fat in the storage process of the oil-tea camellia seed and small variation of indexes such as peroxide value, acid value and the like in the storage process of tea oil. The method has the advantages of simple process, high drying speed, good drying effect and easy control of drying condition.

Description

technical field [0001] The invention belongs to the technical field of agricultural product processing and relates to a drying method for camellia oleifera seeds. Background technique [0002] Camellia oleifera Abel. is a unique woody oil plant in my country. It is mainly distributed in the mountains and hills of 14 provinces (regions) in southern my country. At present, there are about 4 million ha of camellia forests in the country 2 , with an annual output of more than 600,000 tons of Camellia oleifera seeds. Camellia oil extracted from Camellia oleifera seeds has high nutritional value and health care function, and its fatty acid composition is similar to that of olive oil, so it is called "Oriental olive oil". Tea oil contains tea polyphenols and camellia glycosides, rich in VE, VD, VK, carotene and squalene. Long-term consumption can enhance the elasticity and toughness of blood vessels, delay atherosclerosis, increase gastrointestinal absorption, and promote endocrin...

Claims

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Application Information

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IPC IPC(8): C11B1/04F26B3/02
Inventor 吴雪辉
Owner SOUTH CHINA AGRI UNIV
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