Prastika, Nadiya Yulia (2023) Karakteristik Dan Aktivitas Antimikroba Edible Film Pati Biji Alpukat (Persea americana Mill) Dan Gel Lidah Buaya (Aloe vera L.) Dengan Penambahan Plasticizer PEG (Polietilen Glikol). Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Avocado seeds are a source of carbohydrates which are known to contain a lot of starch which turns out to have the potential to make edible films. Edible film is an alternative food packaging that functions as a barrier, carrier and makes it easier to handle. The addition of antimicrobial substances such as aloe vera gel in edible films can prevent food contamination by microorganisms and extend the shelf life of packaged products. Components added to edible films such as plasticizers can affect the resulting characteristics. The purpose of this study was to determine the effect of avocado seed starch and aloe vera gel and the concentration of PEG plasticizer on the characteristics and antimicrobial activity of the resulting edible films. This study used a completely randomized design (CRD) which was arranged with a factorial pattern, consisting of two factors, where factor I was the proportion of avocado seed starch and aloe vera which consisted of three levels (2%:3%; 2.5%:2, 5%; 3%:2%) and factor II was the concentration of PEG plasticizer which consisted of three levels (5%, 5.5% and 6%), each treatment was repeated 2 times. Treatments that had a significant effect were tested further using the DMRT test. The results showed that the best treatment was the proportion of avocado seed starch and aloe vera (2:3)% and 6% PEG plasticizer concentration resulting in an edible film with a thickness of 0.1772 mm, elongation of 15.94%, tensile strength of 1.4785 Mpa, WVTR 39 .60 g/ m2.hr, solubility 66.85%, aw 0.540, *L 76.10, *a 4.10, *b 3.44, total phenol 1255.14 μg/g, E.coli inhibition zone 7 .38 mm and 7.65 mm S.aureus inhibition zone. Keywords: Avocado Seed, Edible Film, Aloe Vera, PEG
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TP Chemical technology > TP368 Food processing and manufacture | ||||||||
| Divisions: | Faculty of Engineering > Departement of Food Engineering | ||||||||
| Depositing User: | Nadiya Yulia Prastika | ||||||||
| Date Deposited: | 24 Jan 2023 06:40 | ||||||||
| Last Modified: | 24 Jan 2023 06:40 | ||||||||
| URI: | http://repository.upnjatim.ac.id/id/eprint/11582 |
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