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All Journal Indonesian Journal of Chemical Studies (Indones. J. Chem. Stud.) IPTEKIN : Jurnal Kebijakan Pembangunan dan Inovasi
Sekarini, Artanti
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Industrial & Manufacturing Engineering

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Physical Strength Improvement of Nata de Coco by Water Replacement with Carboxymethylcellulose (CMC) as A Potential Bulletproof Material: A Preliminary Study Bolilanga, Patricya Inggrid Wilhelmina; Sekarini, Artanti; Toharani, Dita Cinta; Rahmawati, Fani; Basuki, Rahmat; Ishartono, Bayu; Fahri, Mirad
Indonesian Journal of Chemical Studies Vol. 1 No. 2 (2022): Indones. J. Chem. Stud., December 2022
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (574.296 KB) | DOI: 10.55749/ijcs.v1i2.19

Abstract

The dependence on the imported bullet-proof vest  as one of the main equipments of the National Defense System needs attention. This condition treats the independence of domestic defense security. In contrast, the potential of natural materials for bullet-proof vest plates are abundant in Indonesia. Nata de Coco is one of the natural raw materials for producing bullet-proof vest plates that has the potential to be developed. This preliminary research proved that increasing the bond strength of cellulose in Nata de Coco was performed by adding the appropriate crosslinkers. The addition of carboxymethylcellulose (CMC) 2% crosslinker to form Nata de Coco kevlar-like plates (Navlar) was evidenced to increase threefold tensile strength (99.15 MPa) from its original Nata de Coco (31.92 MPa). The development of Navlar is a very strategic sector for producing high-quality bullet-proof vest plates equivalent to kevlar strength. Navlar is more prospective than Kevlar due to its abundant source, cheap, lightweight, and ease to manufacture. Developing Navlar could replace the dependence on imported Kevlar and support the domestic defense industry.  
Analisis Pengelolaan Limbah Kulit Durian di Provinsi Riau Terhadap Potensi Ekonomi dan Dampak Lingkungan Ariyanti, Dita; Rimantho, Dino; Maryana, Roni; Sekarini, Artanti; Hasibuan, Monalisa; Riza, Subkhan; Utiya Syah, Shinta
IPTEKIN Jurnal Kebijakan Pembangunan dan Inovasi Vol. 6 No. 2 (2024)
Publisher : Badan Riset dan Inovasi Daerah (BRIDA) Provinsi Riau

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Abstract

Durian, known as the "King of Fruits" in Southeast Asia, is economically important in Indonesia, particularly in Riau Province. It not only serves as a local delicacy but also has export and agro-tourism potential. However, data from the Riau Central Statistics Agency (BPS) show fluctuating plantation areas and production rates from 2019 to 2022, with a decrease in plantation areas but varying production levels, peaking in 2022. These fluctuations affect durian rind waste generation, posing environmental concerns. Preliminary studies suggest that current waste management practices are inadequate despite the potential for converting durian rinds into useful products like organic fertilizers or biofuels. This study aims to analyze plantation areas, production rates, and durian rind waste generation in Riau while evaluating consumer attitudes and behaviors regarding waste management. It employs both quantitative methods, such as data collection from BPS and field surveys, and primary methods like questionnaires. Analysis includes descriptive statistics and ANOVA tests to assess waste generation differences across sales locations. The findings indicate significant fluctuations in plantation areas and production, with Kampar district leading in both categories. High waste generation rates underscore the need for improved management strategies. Although consumer surveys show awareness of waste issues, practical implementation lags. This research provides insights into optimizing durian production and waste management, aiming to balance economic benefits with environmental sustainability in Riau Province.
Co-Authors ARIYANTI, DITA Bayu Ishartono Bolilanga, Patricya Inggrid Wilhelmina Dino Rimantho Fahri, Mirad Maryana, Roni Monalisa Hasibuan Rahmat Basuki Rahmawati, Fani Riza, Subkhan Toharani, Dita Cinta Utiya Syah, Shinta