Zubaidi, Bilal (2021) Pengaruh Konsentrasi Larutan Pati dan Suhu Gelatinisasi Larutan Pati pada Pembuatan Bioplastik Berbahan Dasar Pati Sagu (Metroxylon sagu R.). Sarjana thesis, Universitas Brawijaya.
Abstract
Penggunaan Low Density Poly Ethylene (LDPE) memberikan dampak buruk bagi lingkungan. Penggunaan bioplastik merupakan alternatif yang dapat mengurangi dampak. Pati sagu adalah polimer alami yang dapat menjadi bahan utama dalam pembuatan bioplastik. Penelitian ini bertujuan mengetahui konsentrasi larutan dan suhu gelatinisasi pati sagu yang digunakan pada pembuatan bioplastik berbahan dasar pati sagu, sehingga didapatkan kuat tarik, persentase pemanjangan, ketahanan terhadap air, kadar air dan rendemen yang terbaik. Penelitian ini menggunakan metode Rancangan Acak Kelompok (RAK) dengan dua faktor yaitu konsentrasi larutan pati sagu dengan 3 tingkatan (3%, 5% dan 7%) dan faktor kedua adalah suhu gelatinisasi pati sagu dengan 3 tingkatan (650C, 750C dan 850C). Parameter pengamatan yang dilakukan meliputi kuat tarik, persentase pemanjangan, ketahanan terhadap air, rendemen dan kadar air. Pengolahan data dilakukan dengan menggunakan analisis sidik ragam (ANOVA). Hasil penelitian ini, faktor konsentrasi larutan pati sagu memberikan pengaruh signifikan terhadap respon kuat tarik, persentase pemanjangan terhadap putus, ketahanan terhadap air, kadar air dan rendemen. Faktor suhu gelatinisasi pati sagu memberikan pengaruh signifikan terhadap respon persentase pemanjangan terhadap putus, ketahanan terhadap air dan rendemen. Perlakuan terbaik jatuh pada bioplastik berbahan pati sagu dengan konsentrasi 7% dan suhu gelatinisasi 850C dengan nilai kuat tarik 6,37 MPa, persentase pemanjangan terhadap putus 22,22%, ketahanan terhadap air dengan respon penyerapan air yaitu 40,34%, kadar air 16,81% dan rendemen 9,18%
English Abstract
The use of Low Density Polyethylene (LDPE) has a bad impact on the environment. One way to reduce the negative impact on the environment is to use bioplastic, because it is easy to decompose and is made of natural polymers so it is safe for the environment. One of the natural polymers that can be used to make bioplastic is sago starch, because its availability is abundant in Indonesia and have a relatively high starch content compared to other starch-producing crops. Making bioplastic with sago starch is influenced by gel formation. There are two factors that affect the formation of gel in the manufacture of bioplastic that is the solution concentration of sago starch and sago starch gelatinization temperature. This study aims to determine the concentration of sago starch solution and the gelatinization temperature of sago starch used in the manufacture of bioplastic made from sago starch, in order to obtain the best tensile strength, elongation percentage, water resistance, moisture content and yield. This study used a Randomized Block Design method with two factors. The first factor is the concentration of sago starch solution with 3 levels of 3%, 5% and 7%. The second factor is the gelatinization temperature of sago starch with 3 levels of 650C, 750C and 850C. This study was conducted to repeat 3 times so that there are 27 units of trial. Parameters observed include tensile strength, percentage of elongation, water resistance, moisture content and yield. Data processing was carried out using analysis of variance (ANOVA). Selection of the best treatment using the Effectiveness Index method. The results showed that the concentration factor of sago starch solution had a significant effect on the tensile strength response, the percentage of elongation to break, water resistance, moisture content and bioplastic yield. The gelatinization temperature factor of sago starch has a significant vii effect on the response of percentage of elongation to break, resistance to water and yield. The results showed that the variation of concentration of sago starch solution and variation of gelatinization temperature together did not have a significant effect on the response of tensile strength, percentage of elongation to break, water resistance, moisture content and yield of bioplastics made from sago starch. The best treatment of bioplastic made from sago starch was bioplastic with a concentration of 7% and a gelatinization temperature of 850C with a tensile strength value of 6.37 MPa, the percentage of elongation to break was 22.22%, water resistance with a water absorption response of 40.34%, water content 16 ,81% and yield of 9.18%.
Other obstract
-
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 052010 |
| Uncontrolled Keywords: | Bioplastik, pati sagu, Sago starch, bioplastic |
| Subjects: | 300 Social sciences > 338 Production > 338.1 Agriculture > 338.16 Production efficiency |
| Divisions: | Fakultas Teknologi Pertanian > Teknologi Industri Pertanian |
| Depositing User: | Unnamed user with username dedyiskandar |
| Date Deposited: | 23 Oct 2021 06:13 |
| Last Modified: | 26 Sep 2024 01:58 |
| URI: | http://repository.ub.ac.id/id/eprint/185396 |
![[thumbnail of Bilalzubaidi.pdf]](http://repository.ub.ac.id/style/images/fileicons/text.png) |
Text
Bilalzubaidi.pdf Download (3MB) |
Actions (login required)
 |
View Item |