| dc.contributor.advisor | Sailah, Illah | |
| dc.contributor.advisor | Sugiarto | |
| dc.contributor.author | Marsya, Difanda Alifia | |
| dc.date.accessioned | 2026-09-23T04:40:44Z | |
| dc.date.available | 2026-09-23T04:40:44Z | |
| dc.date.issued | 2026 | |
| dc.identifier.uri | http://repository.ipb.ac.id/handle/123456789/179995 | |
| dc.description.abstract | Penelitian ini bertujuan menentukan metode dekafeinasi yang paling sesuai
sebagai dasar perancangan proses dekafeinasi kopi robusta dengan
mempertimbangkan efektivitas penurunan kafein dan karakteristik fisikokimia
produk. Metode yang diuji meliputi perebusan, perendaman menggunakan etil
asetat, dan perendaman menggunakan ekstrak labu siam setelah pre-treatment
pengukusan. Biji kopi kemudian dikeringkan, disangrai tingkat medium roast,
digiling, dan dianalisis kadar kafein, kadar air, aktivitas air, protein, warna, pH, dan
total asam tertitrasi. Hasil penelitian menunjukkan bahwa seluruh metode mampu
menurunkan kadar kafein dibandingkan kontrol, dengan penurunan berturut-turut
sebesar 33,80% pada perebusan, 42,15% pada etil asetat, dan 48,93% pada ekstrak
labu siam. Seluruh perlakuan memenuhi batas kadar air (=12,5%) dan aktivitas air
(<0,60). Etil asetat menghasilkan warna yang paling mendekati kontrol dan
mempertahankan total asam, sedangkan ekstrak labu siam menghasilkan kadar
kafein akhir paling rendah (1,01%). Temuan ini menunjukkan bahwa dekafeinasi
berbasis ekstrak labu siam memiliki potensi sebagai alternatif proses dekafeinasi
alami yang efektif dan berpotensi dikembangkan untuk pengolahan kopi robusta
skala kecil. | |
| dc.description.abstract | This study aimed to determine the most suitable decaffeination method as a
basis for designing a robusta coffee decaffeination process by considering caffeine
reduction effectiveness and the physicochemical quality of the product. The
methods evaluated were boiling, soaking in ethyl acetate, and soaking in chayote
extract after a steaming pre-treatment. The coffee beans were subsequently dried,
medium-roasted, grinded, and analyzed for caffeine content, moisture content,
water activity, protein content, color, pH, and total titratable acidity. The results
showed that all methods reduced caffeine content compared with the control, with
reductions of 33.80% for boiling, 42.15% for ethyl acetate, and 48.93% for chayote
extract. All treatments met the moisture content limit (=12.5%) and water activity
limit (<0.60). Ethyl acetate produced color values closest to the control and
maintained total acidity, whereas chayote extract resulted in the lowest final
caffeine content (1.01%). These findings indicate that chayote extract-based
decaffeination has potential as an effective natural decaffeination alternative and
may be further developed for small-scale robusta coffee processing. | |
| dc.description.sponsorship | | |
| dc.language.iso | id | |
| dc.publisher | IPB University | id |
| dc.title | Kajian Perbandingan Metode Dekafeinasi Biji Kopi Robusta (Coffea canephora) Berdasarkan Penurunan Kadar Kafein dan Karakteristik Fisikokimia | id |
| dc.title.alternative | Comparative Study of the Decaffeine Method of Robusta Coffee Beans (Coffea canephora) Based on Caffeine Reduction and Physicochemical Quality | |
| dc.type | Skripsi | |
| dc.subject.keyword | dekafeinasi | id |
| dc.subject.keyword | etil asetat | id |
| dc.subject.keyword | ekstrak labu siam | id |
| dc.subject.keyword | kopi robusta | id |
| dc.subject.keyword | mutu fisikokimia | id |
| dc.subject.keyword | Perebusan | id |
| dc.subject.keyword | boiling | id |
| dc.subject.keyword | chayote extract | id |
| dc.subject.keyword | decaffeination | id |
| dc.subject.keyword | ethyl acetate | id |
| dc.subject.keyword | physicochemical quality | id |
| dc.subject.keyword | robusta coffee | id |
| dc.subtype | Undergraduate Theses | |