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All Journal Journal of Soilscape and Agriculture
Patricia Sembiring, Susan Barbara
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Agriculture, Biological Sciences & Forestry Environmental Science

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Effect of Bromelin Enzyme in Pineapple (Ananas comosus L.) on Caffeine Content and Flavour of Arabica Coffee Arum, Ayu Puspita; Maulidana, Ach. Ariful; Patricia Sembiring, Susan Barbara; Savitri, Dyah Ayu
Journal of Soilscape and Agriculture Vol. 3 No. 2 (2025): Volume 3 Issue 2, 2025
Publisher : University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jsa.v3i2.1375

Abstract

Coffee is one of the main plantation commodities in Indonesia. One of the efforts to produce quality coffee is during the processing of the coffee. Quality coffee is coffee that has a bitter and sour flavour that is not excessive and has a low caffeine content. This is because high caffeine content is not good if consumed in excess. To reduce the caffeine content in coffee, you can use natural ingredients in the form of pineapple which contains the enzyme bromelain which is mixed during the fermentation process. The purpose of this research was to determine the effect of bromelain enzyme concentration and fermentation time on caffeine content and flavour in Arabica coffee. This study used a randomised complete factorial design. The first factor is the concentration of pineapple pulp, namely 0%, 40%, and 80%. The second factor was the length of fermentation time, namely 24 hours, 36 hours and 48 hours. Data were analysed using ANOVA analysis of variance if significantly different, then further tested by Duncan with a 5% error rate. The results showed that the interaction between the concentration of pineapple pulp and the length of fermentation had a very significant effect on the observation variable of caffeine content with the best results E2P1. The effect of pineapple pulp concentration had a significant effect on the pH parameter and a very significant effect on the caffeine content parameter. The effect of fermentation duration had a very significant effect on the observation variable of caffeine content.
The effect of Auxin Concentratioin and Planting Media Composition on The Growth and Yield of Straw Mushrooms (Volvariella volvaceae) Novendra, Dimas Ihza; Setiyono; Nisak, Fauziatun; Patricia Sembiring, Susan Barbara; Arum, Ayu Puspita; Savitri, Dyah Ayu
Journal of Soilscape and Agriculture Vol. 4 No. 1 (2025): Volume 4 Issue 1, 2025
Publisher : University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jsa.v4i1.5793

Abstract

This research investigates the effect of auxin concentration and planting media composition on the growth and yield of paddy straw mushrooms (Volvariella volvacea). Using a completely randomized design (CRD), this study tested various treatment combinations of planting media composition consisting of 100% straw (M1), 75% straw + 25% tofu dregs (M2), and 50% straw + 50% tofu dregs (M3), as well as the addition of several auxin concentrations consisting of control or without auxin (K0), synthetic auxin 3 ml/L (K1), auxin 6 ml/L (K2), and auxin 9 ml/L (K3). The 100% straw planting medium (M1) resulted in the highest number of fruiting bodies, while the treatment combination of 75% straw and 25% tofu dregs with the addition of 6 ml/L auxin concentration (M2K2) is recommended to provide the best results for fruiting body diameter. In addition, the treatment combination of 75% straw and 25% tofu dregs with the addition of 9 ml/L auxin concentration (M2K3) produced the highest fruiting body weight. This research recommends the use of the right combination of media and auxin concentration for optimal paddy straw mushroom cultivation. The results of this study are expected to provide guidance for farmers in increasing the productivity of paddy straw mushrooms in Indonesia, especially in East Java, by utilizing organic waste as a nutrient-rich planting medium.
Co-Authors Arum, Ayu Puspita Dyah Ayu Savitri Maulidana, Ach. Ariful Nisak, Fauziatun Novendra, Dimas Ihza setiyono