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Extracting method of camellia oleosa seed oil

An extraction method and camellia seed oil technology are applied in the directions of oil/fat production, fat production, etc., which can solve the problems of low oil extraction rate and difficulty in grinding, and achieve the improvement of clear oil yield, short baking time, and improved oil extraction. rate effect

Active Publication Date: 2018-01-16
HAIKOU EXPERIMENTAL STATION CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention proposes a method for extracting camellia oleifera seed oil, which solves the problems of difficult grinding and low oil extraction rate

Method used

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  • Extracting method of camellia oleosa seed oil
  • Extracting method of camellia oleosa seed oil
  • Extracting method of camellia oleosa seed oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for extracting camellia oleifera seed oil, comprising the following steps:

[0023] (1) Steam explosion: After the shelled camellia seeds are heated and baked by far infrared, the baking temperature is 180°C, the baking time is 5min, under 2.4Mpa, the pulp is exploded after maintaining pressure for 180s, and the slurry is obtained .

[0024] (2) Adjust the pH value: Mix the slurry and water uniformly according to the ratio of solid to liquid 1:3.5, and then adjust the pH value to 8 with sodium hydroxide.

[0025] (3) Extraction by water substitution method: perform vibration extraction on the slurry after adjusting the pH value. The vibration extraction is performed at a rotation speed of 160r / min for 150min at an extraction temperature of 75°C. After vibration extraction, stand still for 120min and centrifuge For the oil layer, emulsified layer and residue, the centrifugation speed is 4000r / min, and the centrifugation time is 10min.

[0026] (4) Demulsificat...

Embodiment 2

[0028] A method for extracting camellia oleifera seed oil, comprising the following steps:

[0029] (1) Steam explosion: After the shelled camellia seeds are heated and roasted by far infrared, the roasting temperature is 190°C, the roasting time is 8min, under 2.4Mpa, the maintenance pressure is 210s, and the pulp is exploded to obtain the slurry .

[0030] (2) Adjust the pH value: mix the slurry and water according to the ratio of solid to liquid 1:4.5, and then adjust the pH value to 10 with sodium hydroxide.

[0031] (3) Extraction by water substitution method: perform vibration extraction on the slurry after adjusting the pH value. The vibration extraction is carried out at a rotation speed of 150r / min for 180min at an extraction temperature of 95°C. After vibration extraction, stand still for 120min and centrifuge For the oil layer, emulsified layer and residue, the centrifugation speed is 5000r / min, and the centrifugation time is 10min.

[0032] (4) Demulsification: t...

Embodiment 3

[0034] A method for extracting camellia oleifera seed oil, comprising the following steps:

[0035] (1) Steam explosion: After the shelled camellia seeds are heated and roasted by far infrared, the roasting temperature is 200°C, the roasting time is 11min, under 2.6Mpa, the maintenance pressure is 180s, and the pulp is exploded to obtain the slurry .

[0036] (2) Adjust the pH value: Mix the slurry and water uniformly according to the ratio of solid to liquid 1:3.8, then adjust the pH value to 9 with sodium hydroxide.

[0037] (3) Extraction by water substitution method: perform vibration extraction on the slurry after adjusting the pH value. The vibration extraction is carried out at a rotation speed of 160r / min for 210min at an extraction temperature of 85°C. After vibration extraction, stand still for 120min and centrifuge For the oil layer, emulsified layer and residue, the centrifugation speed is 4000r / min, and the centrifugation time is 10min.

[0038] (4) Demulsificat...

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Abstract

The invention provides an extracting method of camellia oleosa seed oil. The extracting method comprises the following steps: (1) steam explosion; (2) regulation of pH value; (3) extracting with an aqueous extraction process; (4) emulsion breaking. The method provided by the invention solves the problems of difficult grinding and low oil extraction rate in traditional aqueous extraction process; through the steam explosion, the cellulose and hemicellulose in the cell walls of camellia oleosa seeds are degraded, the cell walls are effectively damaged, and oil is separated from a lipid complex,thus the oil in the cells is quickly released, and the oil extraction rate is effectively increased. The emulsion breaking is performed in an alkaline condition, and the glycosidic bond of tea saponinis hydrolyzed so as to lose the surface activity and increase the clear oil yield.

Description

technical field [0001] The invention relates to the technical field of oil extraction, in particular to a method for extracting camellia oleifera seed oil. Background technique [0002] Camellia oleifera seed oil is a high-quality health-care edible vegetable oil with superior nutritional value and physiological effects than ordinary oils, known as "Oriental olive oil". However, different oil extraction processes have a great impact on the quality of oil. [0003] At present, there are two most common methods for extracting oil in the oil industry, which are pressing method and leaching method. Pressing methods include cold pressing and hot pressing. Due to the high temperature in the hot pressing process, the nutrients and biologically active substances in the tea seed oil are severely damaged, and the oil has a deep color, many impurities, low oil yield, and high cake residual oil rate, which is drastically reduced. Oil quality. Although the quality of cold-pressed oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/10C11B1/16
Inventor 郑晓燕盛占武艾斌凌郑丽丽金志强
Owner HAIKOU EXPERIMENTAL STATION CHINESE ACAD OF TROPICAL AGRI SCI
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