CN1667105A - Process for processing tea seed oil - Google Patents

Abstract

This invention is a new technique of tea oil processing. Precipitate contained by crude tea oil can be thoroughly removed through phosphoric acid degumming, alkali refining, filtration at low temperature, decolorization and other procedures, and effective dead time of tea oil can be reduced. The technical route is reasonable, it can reduce tea oil standing time greatly, and reduce warehouse invest, accelerate fund turnover and boost up manufacturer economic benefit. There is great advancement to the processing of lixiviated tea oil.

Description

A kind of process for processing tea seed oil

Technical field

The present invention relates to a kind of new process for processing of tea-seed oil, especially a kind of leaching process for processing tea seed oil.

Background technology

Oil tea is a kind of perennial woody section oil crops, abounds with provinces and regions such as Hunan in China, Jiangxi, Zhejiang, Guangxi, and the tea oil of China 80%-90% mainly is to obtain from tea oil tree.The same with other grease production, the process for processing of tea-seed oil generally will be through clearing up, peel off, roll embryo, steaming basic working procedure such as stir-fry, squeezing, leaching, refining, owing to reasons such as not good are gathered in the crops and processed to the tea seed, often cause leach tea oil in the winter time (season that temperature is lower) have throw out to separate out, influence is produced on the one hand, influence is sold on the other hand, and manufacturer production tea oil could be sold after will placing the several months, so not only increase warehouse investment and working capital, and directly influence producer's economic benefit.

Summary of the invention

Purpose of the present invention just provides a kind of leaching process for processing tea seed oil, can improve the process velocity that leaches tea oil greatly.

The present invention is achieved like this, and its processing step is:

(1) phosphoric acid degumming; At normal temperatures, toward leaching the phosphoric acid that adds the heavy 0.1-0.2% of oil in the coarse tea oil, its concentration is 80-90%, stirs 40min fast;

(2) alkali refining: contain throw out because of leaching coarse tea oil, adopt alkali refining under 20-30 ℃ the low temperature, add 20%NaOH solution, add alkali while stirring, stirring velocity 60r/min, after be warming up to 60-65 ℃, 30r/min stirs during intensification, leave standstill 8-10h then, emit soap stock, use the hot wash 2 times of the heavy 5%-10% of oil again;

(3) filter at low temperature: oil cooling behind the alkali refining to about 9-10 ℃, is filtered;

(4) decolouring: will filter tea oil earlier is 96kPa in vacuum tightness, temperature is 95-100 ℃, the 60r/min agitation condition is dehydration down, till the interior no water smoke of dehydration pot, add 2% heavy atlapulgite of oil then, decolouring 0.5h, oil after the decolouring is 100kPa in vacuum tightness, temperature is to carry out wet distillation 5h under 230 ℃ of conditions, is cooled to vacuum breaker below 70 ℃ then, filter and finished product tea oil.

Operational path of the present invention is reasonable, can shorten tea oil storage period greatly, reduces the warehouse investment, quickens turnover of funds, improves producer's economic benefit.

Embodiment

Embodiment (one)

At normal temperatures, the phosphoric acid that adds 1kg in the leaching coarse tea oil of 1000kg, stir 40min fast, carry out phosphoric acid degumming: under 20 ℃ temperature, add 1 liter of 20%NaOH solution then, add alkali while stirring, stirring velocity 60r/min, after be warming up to 60 ℃, 30r/min during intensification, left standstill then 8 o'clock, and used the hot wash 2 times of 100kg again; With the oil cooling to 9 behind the alkali refining ℃, filter; The processing of decolouring at last, to filter tea oil earlier is 96kPa in vacuum tightness, temperature is 95 ℃, and dehydration under the 60r/min agitation condition is till the interior no water smoke of dehydration pot, add the 2kg atlapulgite then, decolouring 0.5h, the oil after the decolouring is 100kPa in vacuum tightness, temperature is to carry out wet distillation 5h under 230 ℃ of conditions, be cooled to vacuum breaker below 70 ℃ then, filter and finished product tea oil.

Embodiment (two)

At normal temperatures, the phosphoric acid that adds 2kg in the leaching coarse tea oil of 1000kg, stir 40min fast, carry out phosphoric acid degumming: under 30 ℃ temperature, add 1 liter of 20%NaOH solution then, add alkali while stirring, stirring velocity 60r/min, after be warming up to 65 ℃, 30r/min during intensification, left standstill then 10 hours, and used the hot wash 2 times of 100kg again; With about the oil cooling to 10 behind the alkali refining ℃, filter; The processing of decolouring at last, to filter tea oil earlier is 96kPa in vacuum tightness, temperature is 100 ℃, and dehydration under the 60r/min agitation condition is till the interior no water smoke of dehydration pot, add the 2kg atlapulgite then, decolouring 0.5h, the oil after the decolouring is 100kPa in vacuum tightness, temperature is to carry out wet distillation 5h under 230 ℃ of conditions, be cooled to vacuum breaker below 70 ℃ then, filter and finished product tea oil.

Claims (1)

1, a kind of new process for processing of tea oil is characterized in that processing step is:

(1) phosphoric acid degumming: at normal temperatures, toward leaching the phosphoric acid that adds the heavy 0.1-0.2% of oil in the coarse tea oil, its concentration is 80-90%, stirs 40min fast;

(2) alkali refining: under 20-30% ℃ of low temperature, add 20%NaOH solution, add alkali while stirring, stirring velocity 60r/min, after be warming up to 60-65 ℃, 30r/min stirs during intensification, leaves standstill 8-10h then, emit soap stock, use the hot wash 2 times of the heavy 5%-10% of oil again;

(3) filter at low temperature: the oil cooling behind the alkali refining to about 9-10 ℃, is filtered;

(4) decolouring: will filter tea oil earlier is 96kPa in vacuum tightness, temperature is 95-100 ℃, the 60r/min agitation condition is dehydration down, till the interior no water smoke of dehydration pot, add 2% heavy atlapulgite of oil then, decolouring 0.5h, oil after the decolouring is 100kPa in vacuum tightness, temperature is to carry out wet distillation 5h under 230 ℃ of conditions, is cooled to vacuum breaker below 70 ℃ then, filter and finished product tea oil.