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Lenny Amelia HK
Masoem University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Engineering Veterinary Other

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Pengaruh suhu dan lama penyimpanan terhadap parameter warna pada lettuce segar (Lactuca sativa L.) Lenny Amelia HK
Composite : Jurnal Ilmu Pertanian Vol 6 No 2 (2024): Agustus
Publisher : University of Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/composite.v6i2.683

Abstract

Lettuce (Lactuca sativa L.) is a perishable vegetable that requires proper handling and storage to maintain its quality. This study aims to determine the effect of temperature and storage duration on color changes in lettuce. The research was conducted using a 4 x 3 factorial design with 2 replications in a randomized complete block design (RCBD). The treatment combinations included storage temperatures of 2°C, 10°C, and 27°C, and storage durations of 0 days, 2 days, 4 days, and 6 days. Color measurements were performed using a CR-400 chromameter with CIE technique. The results indicated that the lettuce sample stored at 2°C for 4 days (Sample l3s1) had the best color quality. The brightness parameter (L) showed good green brightness, the red-green parameter (a) indicated higher freshness, the yellow-blue parameter (b) displayed a good level of yellowness, and the total color change (∆E) showed very little color change with a value of 16.070. This condition indicates that 2°C for 4 days is the optimal storage condition for maintaining lettuce color quality.
Analisis asam oksalat pada pembuatan asam sunti (Averrhoa bilimbi) berdasarkan variasi konsentrasi garam dan suhu pengeringan Lenny Amelia HK; Kelik Putranto
Composite : Jurnal Ilmu Pertanian Vol 7 No 1 (2025): Februari
Publisher : University of Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/composite.v7i1.842

Abstract

Bilimbi (Averrhoa bilimbi) is a popular raw material in the production of asam sunti, known for its distinct sour taste. Oxalic acid, which is found in bilimbi, can affect the quality and safety of the final product. Asam sunti is a fermented product that involves a preservation process using salt, which not only adds flavor but also has the potential to alter the nutritional content of the raw material. This study aims to analyze the oxalic acid content in the production of asam sunti from bilimbi (Averrhoa bilimbi) with variations in salt concentration and drying temperature. The study uses an experimental method with variations in salt concentration (5%, 10%, and 15%) and drying temperature (40°C, 50°C, and 60°C) to determine their effects on the oxalic acid content. The results show that both salt concentration and drying temperature affect the oxalic acid content in asam sunti. The treatment with 15% salt concentration (a3) and 40°C drying temperature (b1) gave the best results because these two factors support each other in maintaining the oxalic acid content. The 15% salt concentration is high enough to improve preservation and drying, while the 40°C drying temperature is optimal for preventing the degradation of chemical components.
Co-Authors Kelik Putranto