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

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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 long drying time and poor storage quality of camellia oleifera seeds, which are not suitable for large-scale industrial production and severely restrict the processing of camellia oleifera seeds. Defects in other aspects

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
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Embodiment 1

[0018] The freshly harvested Camellia oleifera fruits are selected to remove impurities, moldy and pest-damaged Camellia oleifera fruits. The selected Camellia oleifera fruits were placed at room temperature, and the relative humidity was controlled at 75%. After 10 days of stack retting, the oil content of Camellia oleifera seeds was significantly increased, and the shells of Camellia oleifera seeds could be easily removed after stack retting. Camellia oleifera seeds are dried with hot air, and the camellia oleifera seeds are dried at a temperature of 55°C and a bulk density of 320kg / m 3 Lay flat, and dry for 15 hours, so that the water content of the camellia seed reaches below 10%. The dried camellia seeds were stored at room temperature for 8 months, and the acid value and peroxide value of oil in the camellia seeds after storage for 8 months increased by 0.34mgKOH / g and 0.86mmol / kg respectively compared with the initial storage , indicating that the oil content of camell...

Embodiment 2

[0020] The freshly harvested Camellia oleifera fruit is selected to remove the impurities mixed in the Camellia oleifera fruit, the moldy and the Camellia oleifera fruit that is damaged by diseases and insect pests. The selected camellia oleifera fruit is placed at room temperature, the relative humidity is controlled to be 75%, no stack retting or stack retting treatment respectively for 2, 4, 6, 10, 12, 14 days, other process conditions are the same as in Example 1. See Table 1 for the results of oil content improvement of Camellia oleifera seeds.

[0021] Table 1 Changes of main components in Camellia oleifera seeds treated with different retting times

[0022] Retting days (d)

Embodiment 3

[0024] The freshly harvested camellia oleifera fruit is selected to remove impurities, moldy and pest-damaged camellia oleifera fruit. Place it at room temperature, control the relative humidity to be 75%, stack retting for 12 days, and remove the camellia oleifera husk. Different temperatures are used for hot air drying, and the bulk density is 320kg / m 3 Lay flat, dry for 13 hours, measure the relationship between drying temperature and water content, see attached figure 1 shown. attached figure 1 Among them, curves 1, 2, and 3 are the experimental results under the temperature conditions of 55°C, 70°C, and 90°C, respectively.

[0025] attached by figure 1 It can be seen that the water content of camellia oleifera seeds decreased rapidly with the extension of drying time in the early stage of drying, and the water content decreased slowly in the later stage of drying. The higher the drying temperature, the faster the moisture content of camellia oleifera seeds will decre...

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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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