Sifat fisik dan mekanik edible film dari ekstrak daun janggelan (mesona palustris BI)=Physical and Mechanical Properties of Edible Film from Janggelan Leaf Extract (Mesona palustris Bl)
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2005
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/20646/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=3499 |
Daftar Isi:
- The research was aimed to study the effect of stearic acid on physical and mechanical properties of edible film from janggelan leaf extract (Mesona palustris Bl). Edible film was made from 1.25% (w/v) of Janggelan leaf extract, 1% (w/v) of tapioca starch, 0.5% (w/v) of glycerol, zein S % (w/w) 10 mL etanol and 0,10,20,30, or 40 % (w/w) of stearic acid was added to the edible film formula. Increasing stearic acid concentration resulted in increasing thickness, but decreasing tensile strength, solubility, and wvtr of the edible film. Adding 40 % (w/w) stearic acid showed the best of physical and mechanical properties of edible film. The thickness, tensile strength, elongation, solubility, and wvtr were 0.085 mm, 3.10 Mpa, 0.14%, 44.94%, and 0.818 g.mm/m2.jam. Keywords: janggelan leaf extract -stearic acid -edible film -physical anamechanical properties.