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| Titel: |
Extraction and Identification of Water-Soluble Compounds in Palm-Pressed Fiber by SC-CO2 and GC-MS |
| Auteur: |
Harrison Lau Lik Nang Choo Yuen May Ma Ah Ngan Chuah Cheng Hock |
| Verschenen in: |
American journal of environmental sciences |
| Paginering: | Jaargang 3 (2007) nr. 2 pagina's 54-59 |
| Jaar: |
2007 |
| Inhoud: |
The residual oil recovered from palm-pressed fiber is known to contain high level ofcarotenes (4,000 mg kg¯1 to 6,000 mg kg¯1) and vitamin E such as tocopherols and tocotrienols (2,000mg kg¯1 to 3,000 mg kg¯1). In this study, the water-soluble compounds in fresh palm-pressed fiber wererecovered by supercritical carbon dioxide (SC-CO2) extraction. The concentration of these compoundsin palm-pressed fiber oil recovered was determined in the range of 1,000 mg kg¯1 to 2,000 mg kg¯1. Atotal of 12 compounds have been identified from this water-soluble extract with molecular weightsranging from 126 amu. to 208 amu.. Preliminary results showed that these water-soluble compoundspossess superior antioxidant properties screening using FRAP (Ferric Reducing Ability of Plasma) andTEAC (Trolox Equivalent Antioxidant Capacity) assays. |
| Uitgever: |
Science Publications (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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