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Chemical Engineering Department, Faculty Of Sain And Technology, Universitas Jambi, Jambi Department Of Agriculture Product Technology, Faculty Of Agriculture, University Of Jambi Centre Of Excellent In Bio-Geo Material, University Of Jambi
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Journal : Makara Journal of Science

 1 
Development of Yam-Starch-Based Bioplastics with the Addition of Chitosan and Clove Oil Ulyarti, Ulyarti; Lavlinesia, Lavlinesia; Surhaini, Surhaini; Siregar, Nurainun; Tomara, Anggel; Lisani, Lisani; Nazarudin, Nazarudin
Makara Journal of Science Vol. 25, No. 2
Publisher : UI Scholars Hub

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Abstract

The potency of yam starch (Dioscorea alata) as film-forming material together with the potency of chitosan and clove oil as antibacterial materials has led the authors to produce active bioplastics based on these materials. This research was performed to determine the effect of chitosan and clove oil on the physical, mechanical, and barrier properties of yam starch’s active bioplastics. The best bioplastics produced were further tested for their antimicrobiological properties. This study used a completely randomized design with five levels of chitosan concentration (1%, 1.2%, 1.4%, 1.6%, and 1.8%) and five levels of clove oil concentration (0.3%, 0.6%, 0.9%, 1.2%, and 1.5%). Each treatment was repeated four times. The results showed that the concentrations of chitosan and clove oil had a significant effect on the thickness and water vapor transmission rate of film but did not affect its solubility and compressive strength much. The use of 1% chitosan or 1.5% clove oil produced biofilms with the lowest water vapor transmission rate. Both plastics also exhibited strong antibacterial activity against Staphylococcus aureus with chitosan bioplastics having a larger inhibition zone than that of clove oil bioplastics.
Functional Properties of Purple Water Yam Flour Modified by Lactobacillus plantarum Ulyarti, Ulyarti; Yulia, Ade; Nazarudin, Nazarudin; Armando, Yunta Gombang; Erawaty, Lela
Makara Journal of Science Vol. 25, No. 1
Publisher : UI Scholars Hub

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Abstract

Purple water yam flour modified by Lactobacillus plantarum fermentation may be used as an ingredient in flour-based functional food. The purpose of this research is to determine the effect of fermentation time on the functional properties of purple water yam flour modified using L. plantarum. This research used a randomized block design with six treatments: without fermentation (control) and 12, 24, 36, 48, and 60 h of fermentation. Results showed that lactic acid bacteria initially grow well with increasing viability over 48 h of fermentation. Growth and viability rates began to decrease as the organisms entered the declining or dying phase. Statistical analysis showed that fermentation time affects the solubility at 75 °C, chromatic color values L* and b*, and antioxidant activity of flour. Fermentation for 36 h produced the best modified purple water yam flour with an antioxidant activity of 69.82%, bulk density of 0.817 g/mL, water absorption capacity of 3.31 g/g, oil absorption capacity of 1.20 g/g, solubility of 0.45%, L* of 80.33, a* of 16.33, and b* of −5.33. The results indicate that purple water yam flour modified by L. plantarum fermentation for 36 h could be developed as a functional food ingredient.
Co-Authors -, Maison AA Sudharmawan, AA Abda Abda Abu Bakar Abu Bakar Achmad Hizazi Achmad Hizazi Achmad, E Adang, Ferry Ade Yulia Adisty Ramadhani Afreni Hamidah Afriani, Rachmi Afrida Afrida Afrida Afrida Agus Ari Setiawansyah Agus Salim Agus Salim Agus Subagyo Agustini, Yetty Ahmad Syadzali Alfernando, Oki Allan Moechamad Zaennoer Kasdjan, Allan Moechamad Zaennoer Amalia, Rahma Andi Aderus Andrilolo, Andrilolo Arafi Satria Nugraha Ardina, V Aris Doyan Aris Doyan Aritonang, Anthoni Batahan Armando, YG Asep Bambang Susanto asih, yekti purwo Asmiyunda Asni Johari Asrial Asyhar, R Balqis Rahmatullah Putri Bilady, Royhan Budiono, Satwiko Cahyati, Septina Yuri Darmiyati Dedi Gusriadi Degirmenci, Volkan Deni Irawan Dewantara, Dede Dian Wulansari Dian Wulansari, Dian Dwina, Dila Oktarise Dyah Kumalasari E. Maryana Edy Panda Erawaty, Lela Ervan Johan Wicaksana Evita Anggereini Firdaus Muhammad FITRY TAFZI Friani, Desi Gabriel, Marthen Gusriadi, Dedi Hadi Nur Hadistya Suryadri Haviz, M Hesti Megawati Hutwan Syarifuddin Hutwan Syarifuddin I. Rahmayani Ibnatun Rif'ah Ilham Falani Indra Agung Pratama Indra Indra Indriyani Indriyani, I Intan Nandia Sakti Iqbal Ridho Juliandri Ira Galih Ira Galih Prabasari Ira Galih Prabasari Irma Rahmayani Irma Rahmayani Irpan Ali Rahman Ishak, Putri Mutiara Ismail, Gurawan Dayona Juanda, Adrisma Jumardi Budiman Junaedi Yusuf, Junaedi Junri anton Situmorang Kanto, Rizky Khusnelia, Jeni Kurniaty, Dwi Lai, Sin Yuan Lavlinesia Lavlinesia Lavlinesia, lavlinesia Leny Marlinda Lestari, AD Lisani Lisani, Lisani Liza Aulia Yusfi M. Rizki Mahardini, Angger Putri Mahmuddin Mahmuddin Marlinda, Leny Medina Alia Rahmawati Muhammad Agus Muljanto Mukhamad Nurhadi, Mukhamad Mundarti, Sri Murdia, Agus Miranda Mursalin Mursalin . Mursalin, M Mursyid Mursyid . Mursyid Mursyid N Panjaitan Nawahdani, Ahmad Mansur Ninada, Ninada Nita Widyastuti Nova Andriani Nova Kafrita Nur Wulandari Nursela, S Oki Alfernando Oki Alfernando Oman Zuas Pamungkas, Putra Panda, Edy Prabasari, IG Prabowo, Yulius Pratama, Seftiananda Prayatna Lubis, Ade Prihatin, Edi Putri Ananda Putri Sakinah Harahap Putri, Niken Tasya Clara Ra'ida Raudhatussya'rifah Rahayu Suseno Rahma Amalia Rahma Amalia Rahmayani, I Ramadani, Suci Putri Rara Ayu Lestary Ratumanan, Tanwey Ria Amelia Yolanda Rifqi Oktarianda Ripka Nainggolan Rizkiyani, Ainun Rizky Kanto Rosmawati Sipayung Rosyani Rulaini, Melati S.P. Amalia Said Sanimubarak Al'qudusi SALPRIMA YUDHA S Salsabila Setyaningsih Satria, Wiranto Septikasari, Anisa Nur Silvi Leila Rahmi Siregar, Nurainun Siti Nursela Soerja Koesnarpadi Sri Sumarni Sri Sumarni Sri Widiyawati Sulistiana, Ika Putri Sunarno Sunarno Surhaini Surhaini, Surhaini Suripto Dwi Yuwono SUSENO, JOKO Susilawati - SYAHRIAL SYAHRIAL Tamrin Teguh Wirawan, Teguh Tesy Pratami Tezar, Muhammad Tomara, Anggel TRIANI, ELZA Ulyarti Ulyarti Wahyu Ningrum, Wulan Wahyudi Zahar Widyaningsih, Atria Tiffany Widyastuti, Nita Winda Ananda Wirhanuddin, Wirhanuddin Y. G. Armando Yani, Zunarta Yaumidin, Umi K Yogie Yogendra Hans Yuana yuana, Yuana Yuhermita, NM Yuniar Ponco Prananto Yuwono, Suripto D Zunarta Yani