Santoso, Filiana and Rahmat, Virna A. (2012) Safety and Quality Assurance of Tomato and Lettuce Using Aloe Vera Edible Coating. In: II Asia Pacific Symposium on Postharvest Research Education and Extension: APS2012, Yogyakarta, Indonesia.
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Abstract
Nowadays, urban city inhabitants tend to fulfil their health needs by consuming commercially available ready-to-eat salads, which are normally sold in local supermarkets. The challenge faced by the local supplier is the short shelf-life of the fresh or minimally processed vegetables. This study assessed the application of Aloe vera gel as edible coating for tomato and lettuce. The effectiveness of two coating solutions made from fresh A. vera gel and spray-dried A. vera powder were compared. Evaluations were performed for organoleptic quality, physicochemical characteristics and microbiological assays. Organoleptic test showed that the application of coating was overall acceptable. Noteworthy was the finding at day 15, demonstrating higher freshness score for coated tomato samples compared to uncoated sample. The fresh gel coating application could maintain the texture firmness, as well as reduce the weight loss. The microbiological assays revealed that gel solution made of fresh Aloe vera was proven to inhibit the growth of microorganism. Nevertheless, this finding has negative correlation with pH and total soluble solids result. In conclusion, coating solution prepared from fresh Aloe vera gel was confirmed to be more effective in assuring the safety and quality of fresh vegetables compared to the gel prepared from spray-dried powder. This opens the possibility of application of the naturally abundant Aloe vera as modern edible coating in preparation of ready-to-eat salad that can be conducted not only by major industries, but more importantly by the small and middle local home industry.
| Item Type: | Conference or Workshop Item (Paper) |
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| Subjects: | T Technology > TP Chemical technology > TP368 Food processing and manufacture |
| Divisions: | Faculty of Life Sciences and Technology |
| Depositing User: | Library SGU |
| Date Deposited: | 12 Apr 2023 10:24 |
| Last Modified: | 12 Apr 2023 10:24 |
| URI: | http://repository.sgu.ac.id/id/eprint/2557 |
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