PENGARUH PENAMBAHAN ASAM SITRAT TERHADAP KARAKTERISTIK FILM PLASTIK BIODEGRADABLE DARI PATI KULIT PISANG KEPOK (Musa acuminata balbisiana Colla)

Hardjono Hardjono, profiyanti hermien suharti, Dita Ayu Permatasari, Vivi Alvionita Sari

Abstract

Banana peels can be used as raw material for biodegradable plastic film because the banana peels was consists of starch. Starch was derived from banana peels would be rapidly changing color or browning. Browning was prevented by the addition of citric acid during the process of starch extraction from banana peels. The aim of this study was to determine the effect of citric acid on mechanical properties and capabilities degradation of starch biodegradable film made from this starch (film plastik pati kulit pisang – FPKP). FPKP was made with banana peel starch (pati kulit pisang – PKP) as raw materials, with the addition of glycerol as a plasticizer, and both CaCO3 and CMC as filler, whereas the PKP was obtained by simple extraction methods with or without the addition of citric acid. Glycerol concentration was varied from 20% w/w to 60% w/w, while CaCO3 and CMC were added in a fixed amount. The results was showed that the addition of citric acid affects the color of a PKP produced. The addition of citric acid can enhance the tensile strength of FPKP, up to 4,202 MPa for FPKP with CaCO3 filler and 4.032 MPa for FPKP with CMC filler. For biodegrability of FPKP, the affect of citric acid apply vice versa.

Keywords

biodegradability; filler; plasticizer; tensile strength

Full Text:

PDF

References

Ardakani, K. M., A. H. Navarchian, and F. Sadeghi. "Optimization of Mechanical Properties of thermoplastic starch/clay nanocomposites." Carbohydrate Polymers 79 (2009): 547-554.

Bourtoom, Thawien. "Plasticizer effect on the properties of biodegradable blend film from rice starch-chitosan." Songklanakarin Journal Science of Technology 30, no. Suppl.1 (2008): 149-155.

Darni, Yuli, and Herti Utami. "Studi Pembuatan dan Karakteristik Sifat Mekanik dan Hidrofobisitas Bioplastik dari Pati Sorgum." Jurnal Rekayasa Kimia dan Lingkungan Vol. 7, No. 4, 2010: 190-195.

Ghanbarzadeh, Babak, Hadi Almasi, and Ali A. Entezami. "Improving the barrier and mechanical properties of corn starch-based edible films: Effect of citric acid and carboxymethyl cellulose." Industrial Crops and products, 2010.

Hermansyah, Herri, and Adityo F. Nugroho. Sintesis Bioplastikdari Pati Ubi Jalar menggunakan Penguat Logam ZnO dan Penguat Alami Selulosa. Jakarta: Universitas Indonesia, 2012.

Hermansyah, Herri, and Erdo S. Marbun. Sintesis Bioplastik dari Pati Ubi Jalar Menggunakan Penguat Logam ZnO dan Penguat Clay. Jakarta: Universitas Indonesia, 2012.

Hidayat, M. Khoirul, Latifah, and Sri Mantini Rahay Sedyawati. "Penggunaan Carboxymethyl Cellulose dan Gliserol pada Pembuatan Plastik Biodegradable Pati Gembili." Indonesian Journal of Chemical Science 2, no. 3 (November 2013): 253-258.

Indriyati, Lucia Indrarti, and Elsy Rahimi. "Pengaruh Carboxymethyl Cellulose dan Gliserol terhadap SIfat Mekanik lapisan Tipis Komposit Bakterial Selulosa." Jurnal Sains Materi Indonesia 8, no. 1 (Oktober 2006): 40-44.

Ioannou, Irina , and Mohamed Ghoul. "Prevention of Enymatic Browning in Fruit and Vegetables." European Scientific Journal 9, no. 30 (October 2013): 310-341.

Kampeerappun, P., D. Aht-ong, D. Pentrakoon, and K. Srikulkit. "Preparation of cassava starch/montmorillonite composite film." Carbohydrate Polymers 67 (2007): 155-163.

Ma, F. X. "Praparations and properties of glycerol plasticized-pea starch/zinc oxide bionanocomposite." Carb. Polymers 75 (2009): 472-478.

Mao, Lijun, Syed Imam, Sherald Gordon, Patrizia Cinelli, and Enno Chiellini. "Extrude Cornstarch_Glycerol_Polyvinyl Alcohol Blends: Mechanical Properties, Morphology, annd Biodegradability." Journal of Polymers and the Environment 8, no. 4 (October 2002).

Nguyen, Thi Bich Thuy, Saichol Ketsa, and Wouter G. van Doorn. "Relationship between browning and the activities of polyphenol oxidase and phenylalanine ammonia lyase in banana peel during low temperature storage." Postharvest Biology and Technology 30, 2003: 187-193.

Pimpan, V, K. Ratanarat, and M. Pongchawanakul. "Preliminary Study on Preparation of Biodegradable Plastic from Modified Cassava Starch." Journal Science, 2001.

Qiao, X., Z. Tang, and K. Sun. "Plasticization of corn starch by polyol mixtures." Carbohydrate Polymers 83 (2010): 659-664.

Shi, Rui, et al. "Characterization of citric acid/glycerol co-plasticized thermoplastic starch prepared by melt blending." Carbohydrate Polymers 69 (2007): 748-755.

Suharti, Profiyanti Hermien, Nanik Hendrawati, and Arief Suharti. "Studi Awal Pemanfaatan Limbah Kulit Pisang Kepok (Musa acuminata balbisiana Colla) sebagai Bahan Baku Pembuatan Film Biodegradable." Jurnal Teknik: Ilmu dan Aplikasi, 2015.

Utami, Meilina Rahayu, L. Latifah, and Nuni Widiarti. "Sintesis Plastik Biodegradable dari Kulit Pisang dengan Penambahan Kitosan dan Plasticizer Gliserol." Indonesian Journal of Chemical Science, 2014: 163-167.

Widyaningsih, Senny; Kartika, Dwi; Nurhayati, Yuni Tri;. "Pengaruh Penambahan Sorbitol Dan Kalsium Karbonat Terhadap Karakteristik Dan Sifat Biodegradasi Film Dari Pati Kulit Pisang." Molekul 7, no. 1 (2012): 69-81.

Wirawan, Sang Kompiang, Agus Prasetya, and Ernie. "Pengrauh Plasticizer pada Karakteristik Edible FIlm dari Pektin." Reaktor 14, no. 1 (April 2012): 61-67.

Yang, June-Ho, Jongshin Park, Daehyun Kim, and DaeHoon Lee. "Effect of Calcium Carbonate as the Expanding Inhibitor on the Structural and Mechanical Properties of Expanded Starch/Polyvinyl Alcohol Blends." Journal of Applied Polymer Science 93 (2004): 1762-1768.

Zuraida, A., Y. Yusliza, H. Anuar, and R. Mohd Khairul Muhaimin. "The effect of water and citric acid on sago starch bio-plastics." International Food Research Journal 19, no. 2 (2012): 715-719.

DOI: https://doi.org/10.15294/jbat.v5i1.5965

Refbacks

  • There are currently no refbacks.


Bookmark and Share