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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Agritech: Jurnal Fakultas Pertanian Universitas Muhammadiyah Purwokerto
Velian Sandy Wardana
Universitas Kristen Satya Wacana
Agriculture, Biological Sciences & Forestry Engineering

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PENGARUH PELAPISAN CHITOSAN TERHADAP DAYA SIMPAN BUAH MANGGA (Mangifera indica L.) Paulya Eltje Leihitu; Gilang Andi Nugroho; Bellarose Novelia Pandeirot; Brian Jordan Zendrato; Peli Rodo; Chelsy Natalia Putirulan; Erlitha Rahmawati; Velian Sandy Wardana; Teresha Elena Permata; Yoga Aji Handoko; Vania Putri Santoso
Agritech: Jurnal Fakultas Pertanian Universitas Muhammadiyah Purwokerto Vol 23, No 1 (2021): AGRITECH
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/agritech.v23i1.6082

Abstract

Mango (Mangifera indica L.) is a climacteric fruit, which is able to continue the process of ripening after harvest. The mangoes that have been harvested experience a spike in the respiration rate, which can reduce the shelf life of the fruit. Thus, efforts are needed to reduce the rate of fruit respiration. One method that can be used to reduce the respiration rate of fruit is chitosan coating. The purpose of this study was to determine the effect of the concentration of chitosan solution on the shelf life of mangoes. This research was conducted at the Postharvest Handling Laboratory, Faculty of Agriculture and Business, Satya Wacana Christian University. This study uses two types of mangoes, namely arum manis and kweni mangoes with three treatments, namely control, chitosan concentration of 1% and chitosan concentration of 2%. The results of this study are the coating of fruit with chitosan affects the rate of respiration, moisture content, and weight loss. Chitosan 1% treatment can suppress the respiration rate of sweet arum mango 0.034 CO2 /g/minute and 0.022 CO2 /g/minute on kweni mangoes. Chitosan 1% treatment can reduce the weight loss in sweet arum 6.15% and 11.33% in kweni mango. Chitosan 2% treatment can hold the water content in kweni mangoes up to 9.01%.
Assessment of Factors Affecting Agricultural Soil Damage in the Upper Stream Sub-Watershed Velian Sandy Wardana; Bistok Hasiholan Simanjuntak
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 3 (2023): September 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i3.559-570

Abstract

Soil damage can be caused naturally or by human activities. Potential areas that have high soil damage are sub-watershed areas and one of them is the Upper Serang Sub-watershed in Central Java. Assessment of potential and actual land damage will help to make wise land use planning. This research aims to assess actual and potential soil damage and the factors affecting the Upper Serang Sub-watershed. This research used descriptive quantitative and qualitative methods, where quantitative descriptive methods were used to assess soil damage and descriptive qualitative methods were used to determine farmer activity factors about soil conservation. The research result, that potential soil damage was included in the highly class soil damaged category with limiting factors are high rainfall of around > 2500 mm/year, slopes that exceed 25% (25-40% and >40%), soil type was dominated by Inceptisol soil and land use dominated by the moor. Meanwhile, actual soil damage has a slightly soil-damaged class with the limiting factors being permeability, redox potential, and the combined permeability and the soil fraction composition. Actual soil damage has a slightly soil-damaged class (RI) because farmers have taken soil conservation measures by mechanical methods dominant. Future efforts that farmers must do are to increase soil conservation measures with a combination of mechanical and biological conservation methods. Keywords: Actual soil damage, Potential soil damage, Upper Serang Sub-watershed.
Co-Authors Bellarose Novelia Pandeirot Bistok Hasiholan Simanjuntak Brian Jordan Zendrato Chelsy Natalia Putirulan Erlitha Rahmawati Gilang Andi Nugroho Paulya Eltje Leihitu Peli Rodo Teresha Elena Permata Vania Putri Santoso Yoga Aji Handoko