Navegando por Autor "Nurmalina, Rita"

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Increasing value in robusta coffee processing through biogas utilization: An indonesia case study
(Editora UFLA, 2025-03-07) Hutahaean, Lintje; Rustiadi, Ernan; Fauzi, Anas Miftah; Nurmalina, Rita; Rubiyo, Rubiyo
Robusta coffee is a leading commodity in Indonesia that accounts for 86% of total coffee exports in Indonesia. In addition, the issue of energy scarcity and the push for implementing a sustainable industrial system pose new challenges for Indonesia’s coffee industry to transform into a bio-industrial agricultural system. Starting from these issues, this study aims to assess the added value and impact on business profits from robusta coffee processing using biogas and LPG. The study was conducted in a bioindustrial farming system centre based on coffee and dairy cattle integration in Boyolali District, Central Java, Indonesia, from December 2023 to February 2024. The Hayami method was used in analyzing value-added. The analysis findings show that value-added and profit in the biogas-fueled industry have higher values than those in the LPG-fueled industry. Support is needed to develop biogas as an alternative energy and knowledge and training in processing waste as raw material for biogas. It is hoped that this research can improve the welfare of farmers and business actors, help implement sustainable agriculture, and become a model for other regions that want to create bioenergy using local resources.
The impacts of climate variability on coffee yield in five indonesian coffee production centers
(Editora UFLA, 2021) Sarvina, Yeli; June, Tania; Sutjahjo, Surjono Hadi; Nurmalina, Rita; Surmaini, Elza
Coffee is an annual crop sensitive to climate variability. Most Indonesian coffee is cultivated on marginal lands that are vulnerable to environmental chang es, including climate. Indonesia’s climate variability is influenced by several factors, including the monsoon, local aspects, and global climate oscillations such as the El Niño-Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD). It is crucial to identify the impacts of climate variability on both the production and the economy to develop adaptative measures. This study aims to determine the effects of global climate variability, namely ENSO and IOD, on coffee production in several Indonesian production centers. It uses annual coffee production data in the five major production centers in Indonesia. The ENSO indicators used in this study were the Oceanic Nino Index (ONI) in the Nino 3.4 region and the IOD indicator in the Dipole Mode Index (DMI). The anomaly analysis approach between neutral years and the extreme ENSO and between normal and IOD extreme phases were applied in this study. The results showed that the effects of ENSO and IOD were different in each region. The highest decline in production occurred in the La-Nina year in almost all production centers. The decline in output in the La-Nina year ranged from 6 to 22%. Meanwhile, the IOD that had a decreasing effect on production was positive IOD with a decrease ranging from 1 to 15%.