Coffee Skin Waste in Bondowoso Regency Abandoned, UB DM Team Donates a Bed Dryer

Bondowoso is the fourth largest coffee producing region in East Java with production of 8,670 tonnes/year. The largest coffee-producing district is in the Ijen-Raung mountain location, to be precise, in Ijen and Sumber Wringin Districts. Sukoreja Village is one of the villages in Sumber Wringin District with the largest coffee plantation area. The average farmer can harvest two to three tons in one period.

This abundant crop production produces 396.9 tonnes/year of coffee skin waste. Causes accumulation of coffee skin waste which can pollute air and environmental pollution. It can even kill the coffee tree itself if allowed to accumulate in the plantation area.

On the other hand in Desa Sukorejo there are goat commodities that have various livestock health problems. Such as convulsions, bloating, mastitis, and the mother can’t secrete milk after giving birth.

In 2022, Prof. Hendrawan Soetanto, Lecturer at the Faculty of Animal Science, Universitas Brawijaya (Fapet UB) together with the Doctor Servant team provided assistance in processing coffee husk waste as animal feed. However, the processing of coffee skins through the drying process experiences long time constraints. This is because the area of ​​Sukorejo Village is geographically located on the slopes of the Raung-Ijen mountains which have a shade level of pine forests > 75% and relatively high rainfall and frequency of rainy days.

“This year (2023) my team and I are designing a dryer (bed dryer) with a heat source from biomass available in the surrounding environment.” Hendrawan said

“This technology design is able to speed up the drying process with a capacity of 500 kg/day, so that it will be able to guarantee the continuity of new business ventures through standard milling and packaging.” he continued

However, coffee skin processing that is done by drying alone has not had an optimal impact on fulfilling livestock nutrition. Because the anti-nutritional content in coffee skins such as caffeine is still quite high so there is a tendency to inhibit the process of feed metabolism in the livestock body.

Then it is necessary to treat the addition of alkali using 1.5% NaOH solution in order to increase the digestibility value of the coffee skin. Theoretically, it will make a significant contribution to the process of animal feed metabolism. In addition, alkaline treatment can increase the selling price of marketed coffee skins and contribute to the average income of coffee farmers.

The research will be disseminated to coffee farmers through mentoring and counseling in the form of a semi-informal school which is held once a week. The activities provided are business procedures for processing coffee skin waste and business management.

The activity involved a team of UB lecturers from various faculties, including Prof. Bambang Dwi Argo (Faculty of Agricultural Technology), Safarudin Hisyam Tualeka, M.A.B. (Faculty of Administrative Sciences), and Ahmad Khoirul Umam (Fapet). As well as undergraduate and postgraduate students from Fapet, namely Rizka Muizzu Aprilia, S.Pt., M.Pt., Najma Afrahun Nufus, Diyah Lestary Sintha Dewy, Yulia Dwi Fatimah, Anggi Putri Maulina Sari, and Eka Putriwahyuningtyas. (dta)