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Journal : Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)

Shelf-life Estimation of Dried Chili in Vacuum Packaging Nanda Wisha Ranawati; Usman Ahmad; Dyah Wulandani
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.60-70

Abstract

This research aimed to build a model for estimating the shelf life of dried chilies in vacuum packaging stored at any storage temperature. The shelf-life estimation of dried red chilies was carried out based on the change rate of dried chilies quality parameters using the ASLT (Accelerated Shelf-Life Testing) method with the Arrhenius approach. The shelf-life estimation using the ASLT method was carried out by conditioning the storage room, which could accelerate the degradation reaction, stored at temperatures above room temperature. Prior to storage, red chilies were dried until their moisture content reaches 10%. Then it was packaged in vacuum packaging made of PE (polyethylene) plastic and stored at 35°C. During the storage period, the observation was conducted on some quality parameters, namely moisture content, color, and vitamin C content. The same experiments were also carried out at 40°C, 45°C, and 50°C to obtain different rate constant values. The shelf-life estimation results from the Arrhenius equation model were selected based on the critical parameter, in this study the critical parameter was the decrease of vitamin C content. The shelf life of dried red chilies that were packed in vacuum stored at room temperature (25°C) could maintain its quality up to 365 days. Keywords:  Arrhenius,  ASLT,  Red chili,  Vacuum packaging,  Shelf life, 
Improving the Taste of Robusta Coffee by Fermentation with Yeast Inoculum and Its Effect on Caffeine Content Hani Fildzah Nadya; Usman Ahmad; Samsudin Samsudin
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.v13i2.298-308

Abstract

Harvesting coffee process by farmers generally executed entirety, resulting rainbow harvest. Coffee fermentation with yeast starter cultures Saccharomyces cerevisiae Y612, Candida parapsilosis Y207 and Torulospora delbrueckii Y594 was executed separately to determine the role of starter cultures on caffeine and robusta coffee taste at different maturity levels. The study was conducted at the Indonesian Industrial and Beverage Crops Research Institute in Sukabumi,, from June to November 2022. The experiment used a factorial complete randomized design. The first factor was the maturity level of the coffee and starter culture as the second factor. Fermentation was implemented for 48 hours inoculated with 108 cells/mL starter culture. The results showed that the temperature fluctuated, the pH value always decreased to 4.50 and T. delbrueckii was the starter culture with the highest activity during fermentation. Inoculum-fermented robusta coffee caffeine content was higher than non-inoculum. The lowest caffeine content was found in spontaneously fermented red fruit of 1.39%, while the highest caffeine content was produced by red fruit samples inoculated with C. parapsilosis of 2.7%. Robusta coffee with S. cerevisiae inoculation brought the best taste of robusta coffee with 82.10%, there was no significant difference between the red harvest coffee fruit and the fermented rainbow color with a starter culture. Keywords: Caffeine, Harvest, Inoculation, Maturity level, Starter cultures
Co-Authors . Sabihah . Yulianingsih Adi Sutrisno Ali Djamhuri Aris Purwanto Armansyah H. Tambunan Baskara Edi Nugraha Christina Winarti Dedy Wirawan Soedibyo Desrial Desrial Desrial Desrial Diding Suhandy Dwi Dian Novita Dwi Pamungkas Bermani Eko Heri Purwanto Emmy Darmawati Enrico Syaefullah Evi Savitri Iriani Fahim Muchammad Taqi Fahmi Riadi Fajar Kurniawan Firdaus, Jonni Hadi K Purwadaria Hani Fildzah Nadya I Dewa Made Subrata I Dewa Made Subrata I Dewa Made Subrata I Wayan Budiastra Iman Sabarisman Inge Scorpi Tulliza Irriwad Putri Jati Sumarto Putro Khalimatus Sa'diyah Kudang Boro Seminar Lilik Pujantoro Eko Nugroho Lydia Ariani Mar'atus Sholihah Mardison Mardison Mardison S. Meika Wahyuni Azrita Meivie Lintang Mohamad Rafi Mohamad Rahmad Suhartanto Monika Marpaung Mudho Saksono Muhammad Sudirman Akili Muhammad Yusuf Antu MUHAMMAD YUSUF ANTU Nanda Supriana Nanda Wisha Ranawati nFN Mardison nFN Sarastuti nFN Sutrisno nFN Sutrisno Nijma Nurfadila Nijma Nurfadila Nikmatul Hidayah Nofiyanti, Sri Handayani Nugraha Edhi S Nugraha Edhi Suyatma Nur Rahma Refilia Putri Wulandari Zainal Rizka Wildani Rokhani Hasbullah Rokhani Hasbullah Rosyid Ridho Rudy Tjahjohutomo Samsudin Samsudin - Samsudin Samsudin Samsudin Samsudin Sarastuti Sarastuti Sarastuti, Sarastuti Selvi Marcellia Sjahrul Annas Slamet Ari Dwi Ratnanto Slamet Widodo Sri Lestari Sri Widowati Suci Rahmi Sukrisno Widyotomo Suroso . Sut risno Sutrisno Sutrisno - Sutrisno . Sutrisno . Sutrisno Sutrisno Tondok, Efi Toding Verra Mellyana Waqif Agusta Wawan Hermawan Wendianing Putri Luketsi Yusianto Yusianto