Citation
Muhamad Samudi Yasir, . and Mamat @ Shafie Embong, . (1982) The effect of ionizing radiation gamma ray on the microbial content terpenes and piperine of black pepper Piper nigrum L. [Proceedings Paper]
Abstract
A study was conducted to look into the gamma radiation dose which would be sufficient to sterilize our local black pepper and at the same time to find out how this gamma radiation treatment would affect the quality of this spice. Black pepper obtained from local market was irradiated with gamma ray from Co 60 at doses of 0.5 0.75 1 2 3 4.0 and 5.0 Mrad. When the samples were analysed after the irradiation it was found that a dose of 2.0 Mrad was needed to sterilize the spice. However if the irradiated black pepper was stored for two weeks the sterilizing dose was reduced to 0.75 Mrad. Gamma radiation altered the composition of volatile components of black pepper. It increased the amount of monoterpene hydrocarbons and at the same time reduced the contents of oxygenated monoterpenes and sesquiterpene hydrocarbons. However piperine and piperittine the components which contributed to bite taste in black pepper were not altered by the irradiation.
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Abstract
A study was conducted to look into the gamma radiation dose which would be sufficient to sterilize our local black pepper and at the same time to find out how this gamma radiation treatment would affect the quality of this spice. Black pepper obtained from local market was irradiated with gamma ray from Co 60 at doses of 0.5 0.75 1 2 3 4.0 and 5.0 Mrad. When the samples were analysed after the irradiation it was found that a dose of 2.0 Mrad was needed to sterilize the spice. However if the irradiated black pepper was stored for two weeks the sterilizing dose was reduced to 0.75 Mrad. Gamma radiation altered the composition of volatile components of black pepper. It increased the amount of monoterpene hydrocarbons and at the same time reduced the contents of oxygenated monoterpenes and sesquiterpene hydrocarbons. However piperine and piperittine the components which contributed to bite taste in black pepper were not altered by the irradiation.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. TP 368 I5 1980 Call Number |
| AGROVOC Term: | Gamma radiation |
| AGROVOC Term: | Ionizing radiation |
| AGROVOC Term: | antimicrobial agents |
| AGROVOC Term: | Terpenes |
| AGROVOC Term: | Black pepper |
| AGROVOC Term: | Piper nigrum |
| AGROVOC Term: | Sterilization |
| AGROVOC Term: | Irradiation |
| AGROVOC Term: | Volatile compounds |
| AGROVOC Term: | Monoterpenes |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/11847 |
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