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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Industri Pertanian Jurnal Hortikultura Indonesia (JHI) Jurnal BETA (Biosistem dan Teknik Pertanian) Jurnal Keteknikan Pertanian Agrointek Jurnal Penelitian Pascapanen Pertanian Analisis Kebijakan Pertanian Warta IHP (Warta Industri Hasil Pertanian) Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Teknologi Pangan dan Hasil Pertanian Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agrotek Tropika JURNAL PANGAN Jurnal Bisnis Tani Analisis Kebijakan Pertanian Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian AGRIC
Emmy Darmawati
Departemen Teknik Mesin Dan Biosistem, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Kampus IPB Darmaga, Bogor 16680
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Social Sciences Veterinary

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Ozonation Treatment, Edible Coating Carrageenan, and Temperature Variation on The Quality of Fresh-Cut Pineapple During Storage Maulidiyah, Alifah; Darmawati, Emmy; Widayanti, Siti Mariana
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 2 (2024): June 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i2.536-546

Abstract

Fresh-cut pineapples are increasingly popular in Indonesia, but it damage easily due to contamination of pathogenic microorganisms, resulting in a short shelf life. This research aims to examine the effect of applying ozone and edible carrageenan coating on the quality of fresh-cut pineapple stored at low temperatures. The experiment used factorial completely randomized design. The first factor was concentration of carrageenan and the second factor was storage temperature. Based on the lowest TPC (total plate count) value from a preliminary research, the experiment was conducted with soaking time of 60 s. Results showed that weight loss, hardness, and TDS values was respectively 2.24 %; 13.03 °Brix; 11.42 kgf, and tended to increase until the last day of storage. The best results was found at 2.5% carrageenan coating and 5 °C. Results from the organoleptic test, however, found the highest score of 4.41 was collected from 1.5% carrageenan coating and 5 °C. It can be concluded that the combination of soaking in ozonized water for 60 s, immersing the fruit in a 2.5% edible coating carrageenan solution stored at 5 °C can maintain the quality of the fruit and increase the shelf life of fresh-cut pineapple compared to controls that were not given any treatment. Keywords: Drying, Physical Quality, Temperature, Tomatoes, Tween 80.
The Effectiveness of Hydrocooling in Maintaining Broccoli Quality During Storage Wulansetiasari, Rizky; Ahmad, Usman; Darmawati, Emmy
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1843-1856

Abstract

Broccoli is a vegetable with high economic value, but it is also a highly perishable agricultural product after harvest. One method to extend its shelf life is hydrocooling, which involves cooling the product immediately after harvest to reduce the respiration rate, a key factor in quality degradation during storage. This study aimed to determine the optimal temperature and duration of hydrocooling to maintain the quality of fresh broccoli and to observe quality changes during storage. Hydrocooling was applied by immersing broccoli in cold water for 10 and 20 minutes, followed by storage at room temperature and low temperature. Quality observations were conducted for 7 days at room temperature and 16 days under chilled storage (5°C). The quality parameters observed included respiration rate, moisture content, weight loss, microbial contamination, color, and vitamin C content. Results showed that under room temperature storage, there was no significant difference between broccoli with and without hydrocooling; both maintained their quality only up to 4 days. However, the combination of hydrocooling and chilled storage preserved broccoli quality up to 14 days, while the control (without hydrocooling) only lasted until day 10. Therefore, hydrocooling is effective when combined with low-temperature storage, helping to maintain postharvest freshness and extend the shelf life of broccoli.
Preservation and Packaging Methods to Extend the Shelf Life of Fresh Lontar (Borassus flabellifer L.) Pulp Sasmito, Dewi Pratiwi; Darmawati, Emmy; Rokhani
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 6 (2025): December 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i6.2206-2215

Abstract

Lontar is a palm with fruits having a various important biomolecules containing proteins, carbohydrates, vitamins, and minerals, which are beneficial to human health. The shelf life of lontar fruit pulp is generally limited to approximately 1–2 days. The objective of this study was to analyze the effect of water amount and citric acid concentration combining with packaging types and temperature ranges on the quality of fresh lontar fruit pulp and the shelf life of the pulp. The research used Response Surface Methodology with a Central Composite Design as the design model to find the best combination of water and citric acid concentration. The selected combination was applied in preservation treatment with polypropylene and nylon packaging under storage temperatures of 15 °C and 25–28 °C. The quality parameters observed included brightness, hardness, pH, and total dissolved solids, as well as organoleptic tests. The optimization results indicated that the optimal ratio of water to citric acid concentration was 40 ml to 0.2%. Cold storage significantly extended the shelf life of lontar fruit pulp to 6 days, compared to just 3 days at room temperature. The organoleptic test results showed that PP packaging received a higher level of favorability compared to nylon packaging.
Co-Authors . Sutrisno Adinda Putri Ayu Hakim Adya Nurkusumaprama Agus Supriatna Somantri Alifah Maulidiyah Amarilia Harsanti Dameswari Andi Ani Kuswati Andriani Lubis Anita Khairunnisa Aris Purwanto Aulia Indri Shacrudin Bambang Pramudya Dede Risanda Desi Idayanti Dini Nur Hakiki Dyah Ayu Agustiningrum Dyah Wulandani Eko Heri Purwanto Elena, Nadia Elmi Kamsiati Elmi Kamsiati Enrico Syaefullah Erma Suryani Florensius Labat Bionille Hadi Yusuf Faturochman Harli Prawaningrum Heldiyanti, Rina Herdiana, Mega I Wayan Astika I Wayan Budiastra Ihsan, Ghazian Satya Indah Yuliasih Iriani, Evi Savitri Ismaya, Pandu Legawa Iswahyudi Iswahyudi Jamaludin Jamaludin Ken Sutrisno Laras Putri Wigati Laras Putri Wigati Lilik Pujantoro Eko Nugroho Machfud Marimin , Maulidiyah, Alifah Meika Wahyuni Azrita Meity Suradji Sinaga Mila Anisya Rahmi Mila Siti Amalia Mohammad Iqwal Tawakal Nabila Putri, Ivanka Nafilawati wa ode Nelwan, Leopold Oscar nFN Saptana nFN Sutrisno Ni Luh Yulianti Nisa, Khaerun Nofa Andriastuti Dewi Hartono Novia Nava Novita Sari Nugraha Edhi Suyatma Nur Rahma Refilia Nurmala, Rike Nurul Khumaida Paluseri, Fachira Ulfah Rafika Ratik Srimurni Rahmaniar, Chairunnisa Ranti - Ranti Ria Sartika Ridwan Rachmat Rika Permata Sari, Putri Rokhani Rokhani Hasbullah Samang, Andi Marlisa Bossa Samsudin Samsudin Sartika, Novi Dewi Sartika, Ria Sasmito, Dewi Pratiwi Sazli Tutur Risyahadi SEDARNAWATI YASNI Setyadjit Setyadjit Setyadjit, Setyadjit Siti Mariana Widayanti Siti Mariana Widayanti Siti Mariana Widayanti Siti Mariana Widayanti Sugiarto SUTRISNO Sutrisno Sutrisno . Sutrisno . Sutrisno . Sutrisno . Sutrisno Mardjan Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno, Sutrisno Syahputra, Sufri Yanto Syamsiar, Syamsiar Syamsul Bahri trialita aprilia lita Tya Lestari Ueno Hideto Ulya, Kamila Nikmatul Usman Ahmad Widayanti, Siti Mariana Wulansetiasari, Rizky Yadi Haryadi Yadi Haryadi, Yadi Yandri Iskandar Pah Yenny Muliani Yo Toma Yusi Dwi Setyoningtyas Zulkarnain ‪Irna Dwi Destiana