Show simple item record

dc.contributor.authorGinting, M H S
dc.contributor.authorMaulida
dc.contributor.authorSidabutar, T
dc.contributor.authorSirait, T P
dc.date.accessioned2018-08-06T15:05:54Z
dc.date.available2018-08-06T15:05:54Z
dc.date.issued2018
dc.identifier.otherIndra
dc.identifier.urihttp://repository.usu.ac.id/handle/123456789/69471
dc.descriptionMaulidaid
dc.description.abstractThe aims of this research to determine the profile of starch gelatinization, bioplastic and the effect of increasing chitosan and sorbitol to the properties of tensile strength and elongation of break bioplastic. Preparation of bioplastics was used by casting method, that is 30% w/v solution of starch mixed with chitosan solution (0.5 w/v ; 1 w/v; 1.5 w/v; 2 w/v; and 2.5 w/v) and plasticizer sorbitol (10 % w/w; 20 % w/w; 30 % w/w; 40 % w/w and 50 % w/w) were heated using a hotplate magnetic stirrer at 75°C. The results of Rapid Visco Analyzer (RVA) obtained by starch and bioplastic gelatinization temperature of n.94°C; n.noc with peak viscosity 6632 cP and 3476 cPo Analysis of Fourier Transform Infrared (FTTR) and Scanning Electron Microscopy (SEM) obtained the change a functional group of bioplastic 0-H at wave number 3765 em-I and uneven chitosan distribution, and there is still an empty fraction . The addition of chitosan and sorbitol had an effect on tensile strength and elongation at break, tensile strength and elongation at break the highest of 8.36 MPa and 22.06% in starch composition 30%, 2.5 w/v chitosan and sorbitol 30% w/w.id
dc.language.isoenid
dc.subjectStarch Gelatinizationid
dc.subjectBioplasticsid
dc.subjectEffect of Increasing Chitosan and Sorbitolid
dc.titleThe Effect of Increasing Chitosan on the Characteristics of Bioplastic From Starch Talas (Colocasia Esculenta) Using Plasticizer Sorbitolid
dc.typeLecture Papersid


Files in this item

Thumbnail
Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record