Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract
This study seeks to analyze and optimize the antioxidant activity thru beta carotene bleaching assay influenced by different extraction condition on extracts obtained from Malaysia Cocoa Shell. The condition was optimized by response surface methodology with five levels of the model. There are three...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Blue Eyes Intelligence Engineering & Sciences Publication
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/80876/ http://psasir.upm.edu.my/id/eprint/80876/1/CENTRAL.pdf |
| _version_ | 1848858971101724672 |
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| author | Md Yusof, Arief Huzaimi Abd Gani, Siti Salwa Zaidan, Uswatun Hasanah Halmi, Mohd Izuan Effendi |
| author_facet | Md Yusof, Arief Huzaimi Abd Gani, Siti Salwa Zaidan, Uswatun Hasanah Halmi, Mohd Izuan Effendi |
| author_sort | Md Yusof, Arief Huzaimi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study seeks to analyze and optimize the antioxidant activity thru beta carotene bleaching assay influenced by different extraction condition on extracts obtained from Malaysia Cocoa Shell. The condition was optimized by response surface methodology with five levels of the model. There are three variables involved in this study, namely: ethanol concentration (70-90 v/v %), temperature (45-65 ºC), and ultrasound irradiation time (30-60 min). The optimum condition obtains for temperature, duration of extraction and solvent concentration were 55 ºC, 45 minutes and 63.18% respectively at a constant frequency of 40 kHz. In this condition, the antioxidant activity experimental was 98.91±0.5% and predicted 98.44%. The ANOVA shows the coefficient of determination (R2) and the lack of fit test was 0.9846 and 0.6105 respectively. The desirability function from T-test data, modeled equation fits the data, reveals that the design can be used to predicting future observation within the design range. |
| first_indexed | 2025-11-15T12:21:55Z |
| format | Article |
| id | upm-80876 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:21:55Z |
| publishDate | 2019 |
| publisher | Blue Eyes Intelligence Engineering & Sciences Publication |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-808762020-10-15T13:17:35Z http://psasir.upm.edu.my/id/eprint/80876/ Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract Md Yusof, Arief Huzaimi Abd Gani, Siti Salwa Zaidan, Uswatun Hasanah Halmi, Mohd Izuan Effendi This study seeks to analyze and optimize the antioxidant activity thru beta carotene bleaching assay influenced by different extraction condition on extracts obtained from Malaysia Cocoa Shell. The condition was optimized by response surface methodology with five levels of the model. There are three variables involved in this study, namely: ethanol concentration (70-90 v/v %), temperature (45-65 ºC), and ultrasound irradiation time (30-60 min). The optimum condition obtains for temperature, duration of extraction and solvent concentration were 55 ºC, 45 minutes and 63.18% respectively at a constant frequency of 40 kHz. In this condition, the antioxidant activity experimental was 98.91±0.5% and predicted 98.44%. The ANOVA shows the coefficient of determination (R2) and the lack of fit test was 0.9846 and 0.6105 respectively. The desirability function from T-test data, modeled equation fits the data, reveals that the design can be used to predicting future observation within the design range. Blue Eyes Intelligence Engineering & Sciences Publication 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/80876/1/CENTRAL.pdf Md Yusof, Arief Huzaimi and Abd Gani, Siti Salwa and Zaidan, Uswatun Hasanah and Halmi, Mohd Izuan Effendi (2019) Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract. International Journal of Engineering and Advanced Technology, 8 (6S3). pp. 169-173. ISSN 2249-8958 https://www.ijeat.org/wp-content/uploads/papers/v8i6S3/F10280986S319.pdf 10.35940/ijeat.F1028.0986S319 |
| spellingShingle | Md Yusof, Arief Huzaimi Abd Gani, Siti Salwa Zaidan, Uswatun Hasanah Halmi, Mohd Izuan Effendi Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract |
| title | Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract |
| title_full | Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract |
| title_fullStr | Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract |
| title_full_unstemmed | Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract |
| title_short | Central composite design as a tools for optimization of antioxidant activity on cocoa shell extract |
| title_sort | central composite design as a tools for optimization of antioxidant activity on cocoa shell extract |
| url | http://psasir.upm.edu.my/id/eprint/80876/ http://psasir.upm.edu.my/id/eprint/80876/ http://psasir.upm.edu.my/id/eprint/80876/ http://psasir.upm.edu.my/id/eprint/80876/1/CENTRAL.pdf |