Effects of Gac aril microwave processing conditions on oil extraction efficiency, and-βcarotene and lycopene contents

Tuyen C. Kha; Minh H. Nguyen; Paul D. Roach; Costas E. Stathopoulos

doi:10.1016/j.jfoodeng.2012.10.021

Effects of Gac aril microwave processing conditions on oil extraction efficiency, and-βcarotene and lycopene contents

Tuyen C. Kha, Minh H. Nguyen, Paul D. Roach, Costas E. Stathopoulos

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

The effects of Gac oil extraction conditions including microwave power, microwave time, steaming time and hydraulic pressure on extraction efficiency (EE), and b-carotene and lycopene contents were studied. It was found that the EE, and b-carotene and lycopene contents could be enhanced by suitable extraction conditions. Microwave drying was found to be better than air drying for pretreatment. Moisture content after drying and steaming between 8% and 11% (wt/wt) were best for pressing. Results showed that the most suitable conditions for Gac oil extraction from 900 g samples were microwave power of 630 W, microwave time of 65 min, steaming time of 20 min and hydraulic pressure of 170 kg/cm2. Under these conditions, the highest EE of 93% was achieved while Gac oil contained the highest content of b-carotene and lycopene at 140 and 414 mg/100 mL, respectively. Crown

Original language	English
Pages (from-to)	486-491
Number of pages	6
Journal	Journal of Food Engineering
Volume	117
Issue number	4
DOIs	https://doi.org/10.1016/j.jfoodeng.2012.10.021
Publication status	Published - Aug 2013
Externally published	Yes

Keywords

Extraction efficiency
Gac oil
Lycopene
Microwave
Pressing
Steaming
β-Carotene

ASJC Scopus subject areas

Food Science

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10.1016/j.jfoodeng.2012.10.021

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title = "Effects of Gac aril microwave processing conditions on oil extraction efficiency, and-βcarotene and lycopene contents",

abstract = "The effects of Gac oil extraction conditions including microwave power, microwave time, steaming time and hydraulic pressure on extraction efficiency (EE), and b-carotene and lycopene contents were studied. It was found that the EE, and b-carotene and lycopene contents could be enhanced by suitable extraction conditions. Microwave drying was found to be better than air drying for pretreatment. Moisture content after drying and steaming between 8% and 11% (wt/wt) were best for pressing. Results showed that the most suitable conditions for Gac oil extraction from 900 g samples were microwave power of 630 W, microwave time of 65 min, steaming time of 20 min and hydraulic pressure of 170 kg/cm2. Under these conditions, the highest EE of 93% was achieved while Gac oil contained the highest content of b-carotene and lycopene at 140 and 414 mg/100 mL, respectively. Crown",

keywords = "Extraction efficiency, Gac oil, Lycopene, Microwave, Pressing, Steaming, β-Carotene",

author = "Kha, {Tuyen C.} and Nguyen, {Minh H.} and Roach, {Paul D.} and Stathopoulos, {Costas E.}",

note = "Funding Information: The authors acknowledge the University of Newcastle, Australia for the financial support through a PhD grant for Tuyen Kha. The authors would also like to thank Dr. Barbara Blades for allowing to use the HPLC column and Miss Uyen Nguyen for helping with analysing the experimental samples.",

year = "2013",

month = aug,

doi = "10.1016/j.jfoodeng.2012.10.021",

language = "English",

volume = "117",

pages = "486--491",

journal = "Journal of Food Engineering",

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T1 - Effects of Gac aril microwave processing conditions on oil extraction efficiency, and-βcarotene and lycopene contents

AU - Kha, Tuyen C.

AU - Nguyen, Minh H.

AU - Roach, Paul D.

AU - Stathopoulos, Costas E.

N1 - Funding Information: The authors acknowledge the University of Newcastle, Australia for the financial support through a PhD grant for Tuyen Kha. The authors would also like to thank Dr. Barbara Blades for allowing to use the HPLC column and Miss Uyen Nguyen for helping with analysing the experimental samples.

PY - 2013/8

Y1 - 2013/8

N2 - The effects of Gac oil extraction conditions including microwave power, microwave time, steaming time and hydraulic pressure on extraction efficiency (EE), and b-carotene and lycopene contents were studied. It was found that the EE, and b-carotene and lycopene contents could be enhanced by suitable extraction conditions. Microwave drying was found to be better than air drying for pretreatment. Moisture content after drying and steaming between 8% and 11% (wt/wt) were best for pressing. Results showed that the most suitable conditions for Gac oil extraction from 900 g samples were microwave power of 630 W, microwave time of 65 min, steaming time of 20 min and hydraulic pressure of 170 kg/cm2. Under these conditions, the highest EE of 93% was achieved while Gac oil contained the highest content of b-carotene and lycopene at 140 and 414 mg/100 mL, respectively. Crown

AB - The effects of Gac oil extraction conditions including microwave power, microwave time, steaming time and hydraulic pressure on extraction efficiency (EE), and b-carotene and lycopene contents were studied. It was found that the EE, and b-carotene and lycopene contents could be enhanced by suitable extraction conditions. Microwave drying was found to be better than air drying for pretreatment. Moisture content after drying and steaming between 8% and 11% (wt/wt) were best for pressing. Results showed that the most suitable conditions for Gac oil extraction from 900 g samples were microwave power of 630 W, microwave time of 65 min, steaming time of 20 min and hydraulic pressure of 170 kg/cm2. Under these conditions, the highest EE of 93% was achieved while Gac oil contained the highest content of b-carotene and lycopene at 140 and 414 mg/100 mL, respectively. Crown

KW - Extraction efficiency

KW - Gac oil

KW - Lycopene

KW - Microwave

KW - Pressing

KW - Steaming

KW - β-Carotene

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Effects of Gac aril microwave processing conditions on oil extraction efficiency, and-βcarotene and lycopene contents

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Keywords

ASJC Scopus subject areas

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