Pub Date : 2023-08-16DOI: 10.12962/j25481479.v8i3.16675
Ani Purwanti, Eka Sulistyaningsih, Wisnu Prayogo, Muhammad Yusuf
Shrimp shell waste contains chitin which can be processed into chitosan. Chitosan can be utilized as an edible plastic. The film is expected to maintain food quality by resisting water vapour transfer as a preservative and maintaining odour. Edible plastics as food protectors are expected to have optimal mechanical properties. Chitosan films are brittle, so plasticizers are used to increase their flexibility. The mechanical properties of the film may change during storage time. The decline in film quality is expected to be fast enough to allow edible plastics for food wrapping. This study aims to determine the effect of glycerol addition and film storage time on the mechanical properties of edible chitosan film. From the results obtained, adding glycerol plasticizer produces films with thickness and elongation that tend to increase. In contrast, the tensile strength value increases and then decreases with the addition of glycerol. The optimal mechanical strength value was obtained in the film solution with glycerol at 0.3 mL/g chitosan with a maximum tensile strength of 200 kgf/cm2 and a per cent elongation of 135%. The thickness of the film produced was 0.17 mm. The film produced in this study has met the standards of film mechanical strength (tensile strength and per cent elongation) based on the Japanese Industrial Standard (JIS). Meanwhile, based on the Indonesian National Standard (SNI), the tensile strength value produced in this study has yet to meet the SNI standard.
{"title":"Optimization of the Mechanical Properties of Bio-degradable Plastics from Chitosan with Acetic Acid Solvent","authors":"Ani Purwanti, Eka Sulistyaningsih, Wisnu Prayogo, Muhammad Yusuf","doi":"10.12962/j25481479.v8i3.16675","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.16675","url":null,"abstract":"Shrimp shell waste contains chitin which can be processed into chitosan. Chitosan can be utilized as an edible plastic. The film is expected to maintain food quality by resisting water vapour transfer as a preservative and maintaining odour. Edible plastics as food protectors are expected to have optimal mechanical properties. Chitosan films are brittle, so plasticizers are used to increase their flexibility. The mechanical properties of the film may change during storage time. The decline in film quality is expected to be fast enough to allow edible plastics for food wrapping. This study aims to determine the effect of glycerol addition and film storage time on the mechanical properties of edible chitosan film. From the results obtained, adding glycerol plasticizer produces films with thickness and elongation that tend to increase. In contrast, the tensile strength value increases and then decreases with the addition of glycerol. The optimal mechanical strength value was obtained in the film solution with glycerol at 0.3 mL/g chitosan with a maximum tensile strength of 200 kgf/cm2 and a per cent elongation of 135%. The thickness of the film produced was 0.17 mm. The film produced in this study has met the standards of film mechanical strength (tensile strength and per cent elongation) based on the Japanese Industrial Standard (JIS). Meanwhile, based on the Indonesian National Standard (SNI), the tensile strength value produced in this study has yet to meet the SNI standard.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135022815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.16616
S. Suardi, Adhy Rahmat, W. Setiawan, M. U. Pawara, A. Alamsyah, Andi Mursid Nugraha Arifuddin, Taufik Hidayat
{"title":"Design a Phinisi-Type Tourist Ship to Increase Tourist Interest in Vacationing at Taka Bonerate National Park","authors":"S. Suardi, Adhy Rahmat, W. Setiawan, M. U. Pawara, A. Alamsyah, Andi Mursid Nugraha Arifuddin, Taufik Hidayat","doi":"10.12962/j25481479.v8i2.16616","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.16616","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48873307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.16324
Wilma Amiruddin, A. Firdhaus, H. Yudo, Firmansyah Aulia Rakhman
{"title":"Effects of Collision with a Self-Propeller Oil Barge Ship on a Navigational Buoy","authors":"Wilma Amiruddin, A. Firdhaus, H. Yudo, Firmansyah Aulia Rakhman","doi":"10.12962/j25481479.v8i2.16324","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.16324","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48945247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.16718
Kabiru Olayinka Oyegbemi, Orji U Charles, Douglas Ibiaba
{"title":"Performance Analysis of a Point Absorber Wave energy Converter in Nigerian West Coast; Gulf of Guinea","authors":"Kabiru Olayinka Oyegbemi, Orji U Charles, Douglas Ibiaba","doi":"10.12962/j25481479.v8i2.16718","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.16718","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49018551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.15785
H. Yudo, K. Kiryanto, Alji Fadilla Adha, Riyanto Wibowo
{"title":"Strength Analysis of LCT Lady Primus 39.5 m Ramp Door Structure Due to Changes in Tilt Angle Variations and Load Variations","authors":"H. Yudo, K. Kiryanto, Alji Fadilla Adha, Riyanto Wibowo","doi":"10.12962/j25481479.v8i2.15785","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.15785","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42727376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.16888
M. D. Arifin, F. M. Felayati, M. Muslim, Ayom Buwono, Yeddid Yonatan Eka Darma
{"title":"Numerical Study of Kaplan Propeller by Using CFD: Effect of Angle and Blade Diameter Variations","authors":"M. D. Arifin, F. M. Felayati, M. Muslim, Ayom Buwono, Yeddid Yonatan Eka Darma","doi":"10.12962/j25481479.v8i2.16888","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.16888","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44503971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.16432
J. Julian, Waridho Iskandar, F. Wahyuni
{"title":"Leading Edge Modification of NACA 0015 and NACA 4415 Inspired by Beluga Whale","authors":"J. Julian, Waridho Iskandar, F. Wahyuni","doi":"10.12962/j25481479.v8i2.16432","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.16432","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43557893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.16847
Akhmad Basuki Widodo, Mochammad Arief Sofijanto
{"title":"Joint Types of Keel and Frame of Wooden Boats Built with Modular System","authors":"Akhmad Basuki Widodo, Mochammad Arief Sofijanto","doi":"10.12962/j25481479.v8i2.16847","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.16847","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48987411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.14490
A. I. Wulandari, S. Suardi, A. Alamsyah, Aknul Ciptiandi
{"title":"Strength Analysis with Variation of Construction Transverse Watertight Bulkhead On Ship Container 8842 DWT Using Finite Element Method","authors":"A. I. Wulandari, S. Suardi, A. Alamsyah, Aknul Ciptiandi","doi":"10.12962/j25481479.v8i2.14490","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.14490","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46358250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.12962/j25481479.v8i2.16698
Augustinus Pusaka, Erwin Gunawan, Fanny Octaviani
{"title":"Redesigning a 300 ft Barge as a Floating Hotel to Support Tourism in the Thousand Islands","authors":"Augustinus Pusaka, Erwin Gunawan, Fanny Octaviani","doi":"10.12962/j25481479.v8i2.16698","DOIUrl":"https://doi.org/10.12962/j25481479.v8i2.16698","url":null,"abstract":"","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43671891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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