Technique of ethanol food grade production with batch distillation and dehydration using starch-based adsorbent

Widjaja, Tri; Altway, Ali; Ni’mah, Hikmatun; Tedji, Namira; Rofiqah, Umi

doi:10.1063/1.4938295

Cited by 3 publications

(1 citation statement)

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“…Sugar or starch based materials for bioethanol production will make another problem, which is the food and livestock feed source will decrease. Another material can be used for bioethanol production, especially from agricultural waste that cannot be processed again such as rice straw, sorghum stem, coconut coir dust, or coffee pulp waste (Widjaja et al, 2015). By using those materials, the agricultural waste issue can be solved.…”

Section: Introductionmentioning

confidence: 99%

The effect of organosolv pretreatment on optimization of hydrolysis process to produce the reducing sugar

et al. 2018

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As the fossil energy decrease such as petroleum and natural gas, that are encourages a lot of research to develop new sources of energy from renewable raw materials. One of the source is through reducing sugar (glucose and xylose) obtained from coffee pulp waste; this is due to abundant production of coffee pulp every year reaching 743 kg/ha. In addition, this waste has not been used optimally and the cellulose and hemicellulose content of the coffee is high. The purpose of this study is to get the optimal operating condition for reducing sugar production from coffee pulp waste. The method used for optimization is Response Surface Methodology with Central Composite Design. The optimum operation condition obtained was pH 4.63 at 34ºC for 16.29 hours of hydrolysis. As a result, the predicted yield gained was 0.147 grams of reducing sugars / gram of cellulose+hemicellulose. The result indicates the gained yield was 0.137 grams of reducing sugars / gram of cellulose+hemicellulose.

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Section: Introductionmentioning

confidence: 99%