Supercritical CO<SUB>2</SUB> extraction of natural pigment from <EM>Citrus paradisi</EM> ‘Changshan Huyou’ cuticle

SHI Hai-xiang; ZHONG Shan-min; WU Feng-hua

Volume 25 Issue 5

Oct. 2008

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SHI Hai-xiang, ZHONG Shan-min, WU Feng-hua. Supercritical CO2 extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle[J]. Journal of Zhejiang A&F University, 2008, 25(5): 639-643.

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SHI Hai-xiang, ZHONG Shan-min, WU Feng-hua. Supercritical CO₂ extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle[J]. Journal of Zhejiang A&F University, 2008, 25(5): 639-643.

Supercritical CO₂ extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle

1.
School of Agriculture and Food Science，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China

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Corresponding author: ZHONG Shan-min
Publish Date: 2008-10-20

Abstract

In order to obtain the optimal technical condition on the extraction of Citrus paradisi‘Changshan Huyou’and give a theoretic guarantee of extracting it in a large-scale and industrial way，cuticle of ‘Changshan Huyou’was studied with the supercritical CO2 technology. Factors affecting extraction such as time，pressure，95% ethanol dosage and temperature were studied. The results showed that the optimal technical condition of extracting natural pigment from‘Changshan Huyou’cuticle were as follows：extracting time was 2 h；extracting pressure was 25 MPa；95% ethanol dosage was 300 mL；extracting temperature was 35 ℃. After extracting，the liquid pigment was dried to a permanent weight to calculate the extraction rate. The extraction rate was 3.78%. ［Ch，4 fig. 2 tab. 15 ref.］
- cash forestry,
- supercritical CO2 extraction,
- Citrus paradisi‘Changshan Huyou’,
- natural pigment,
- craft

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Supercritical CO₂ extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle

1. School of Agriculture and Food Science，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China

Corresponding author: ZHONG Shan-min

Publish Date: 2008-10-20

Key words:

Abstract: In order to obtain the optimal technical condition on the extraction of Citrus paradisi‘Changshan Huyou’and give a theoretic guarantee of extracting it in a large-scale and industrial way，cuticle of ‘Changshan Huyou’was studied with the supercritical CO2 technology. Factors affecting extraction such as time，pressure，95% ethanol dosage and temperature were studied. The results showed that the optimal technical condition of extracting natural pigment from‘Changshan Huyou’cuticle were as follows：extracting time was 2 h；extracting pressure was 25 MPa；95% ethanol dosage was 300 mL；extracting temperature was 35 ℃. After extracting，the liquid pigment was dried to a permanent weight to calculate the extraction rate. The extraction rate was 3.78%. ［Ch，4 fig. 2 tab. 15 ref.］

Supercritical CO₂ extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle

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Supercritical CO₂ extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle

1. School of Agriculture and Food Science，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China

Corresponding author: ZHONG Shan-min

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Supercritical CO2 extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle

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Supercritical CO2 extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle

1. School of Agriculture and Food Science，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China

Corresponding author: ZHONG Shan-min

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Supercritical CO₂ extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle

Supercritical CO₂ extraction of natural pigment from Citrus paradisi ‘Changshan Huyou’ cuticle