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Journal : Rona Teknik Pertanian

Pengaruh Penambahan Karagenan dan Kayu Secang (Caesalpinia sappan L.) Terhadap Mutu Minuman Jeli Kulit Kopi Arabika Br Hutagalung, Sarah Helena; Romauli, Nauas Domu Marihot; Karo-karo, Terip
Rona Teknik Pertanian Vol 18, No 2 (2025): Volume No. 18, No. 2, Oktober 2025
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v18i2.45957

Abstract

Abstrak.Kopi merupakan bagian dari komoditi hasil pertanian yang memiliki peran yang cukup penting pada sektor ekonomi Indonesia. Kulit kopi atau cascara merupakan salah satu hasil samping dari pengolahan biji kopi yang umumnya menjadi limbah. Namun demikian, kulit kopi masih mengandung sejumlah senyawa polifenol yang berfungsi sebagai antioksidan. Penelitian ini bertujuan untuk mengetahui pengaruh dari penambahan karagenan dan kayu secang terhadap mutu fisikokimia dan sensoris dari minuman jeli kulit kopi arabika. Rancangan penelitian yang digunakan yaitu Rancangan Acak Lengkap (RAL) dengan dua faktor. Faktor pertama yaitu penambahan karagenan (K) terdiri dari 3 taraf 0,2%, 0,3%, 0,4% dan 0,5%. Faktor kedua yaitu penambahan kayu secang (S) terdiri dari 3 taraf 0%, 0,5%, 1% dan 1,5%. Setiap perlakuan diberikan 2 kali ulangan. Parameter pengamatan meliputi aktivitas antioksidan (% inhibisi dan IC50), serat kasar, total padatan terlarut, total asam, pH, sineresis, viskositas, indeks warna, dan uji organoleptik (rasa, tekstur dan penerimaan umum). Hasil penelitian menunjukkan penambahan karagenan berpengaruh sangat nyata (P0,05) terhadap parameter aktivitas antioksidan (% inhibisi dan IC50), serat kasar, total padatan terlarut, total asam, pH, sineresis, viskositas, daya sedot, hedonik tekstur, hedonik rasa dan penerimaan umum. Sementara itu, penambahan kayu secang memberikan pengaruh sangat nyata (P0,05) terhadap parameter aktivitas antioksidan, total asam, indeks warna, pH, sineresis, hedonik rasa dan penerimaan umum. Penelitian ini merekomendasikan minuman jeli kulit kopi arabika dengan perlakuan penambahan karagenan 0,4% (K3) dan kayu secang 1% (S3).Effect of Addition of Carrageenan and Sappan Wood (Caesalpinia sappan L.) on the Quality of Arabica Coffee Pulp Jelly DrinkAbstract. Coffee is part of an agricultural commodity that has an important role in Indonesia's economic sector. Coffee skin or cascara is waste products of coffee beans processing. However, coffee skin still contains a number of polyphenolic compounds that could have function as antioxidants. This study aimed to determine the effect of addition of carrageenan and sappan wood on the physicochemical and sensory quality of Arabica coffee skin jelly drink. This research used the factorial Completely Candomized Design (CRD) with two factors. The first factor, namely the addition of carrageenan (K) consisted of 0,2%; 0,3%; 0,4%; and 0,5%. The second factor, namely sappan wood extract (S) consisted of 0%; 0,5%; 1%; and 1,5%. Each treatment was repeated twice. The quality parameters observed were antioxidant activity (% inhibition and IC50), crude fibre, total soluble solids, total acid, pH-value, sineresis, viscosity, colour index, and organoleptic test (taste, texture and general acceptance). Results showed that the addition of carrageenan gave a highly significant effect (P0,05) on the parameters of antioxidant activity (% inhibition and IC50), crude fiber, total acid, total soluble solids, pH-value, syneresis, viscosity, suction power, hedonic texture, hedonic taste and general acceptance. Meanwhile, the addition of secang wood extract gave a highly significant effect (P0,05) on the parameters of antioxidant activity, total acid, color index, pH-value, syneresis, hedonic taste and general acceptance. This study recommended Arabica coffee skin jelly drink with the addition of 0.4% carrageenan (K3) and 1% sappan wood (S3).
Pengaruh Rasio Sari Kulit Kopi Arabika Dan Konsentrasi CMC (Carboxyl methyl cellulose) Berbeda Terhadap Aktivitas Antioksidan Dan Organoleptik Selai Cascara Romauli, Nauas Domu Marihot; Nurminah, Mimi; Siahaan, Felinda Tria Kasih
Rona Teknik Pertanian Vol 17, No 1 (2024): Volume No. 17, No. 1, April 2024
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v17i1.34772

Abstract

Abstrak. Penelitian ini tentang selai yang terbuat dari bahan dasar kulit kopi arabika dengan rasio air yang berbeda untuk menghasilkan sari dan penambahan konsentrasi CMC (carboxy methyl cellulose). Penelitian ini bertujuan mengetahui pengaruh rasio air dengan kulit kopi arabika serta pengaruh penambahan konsentrasi CMC terhadap sifat fisik dan kimia. Rancangan penelitian yang digunakan yaitu Rancangan Acak Lengkap (RAL) dengan dua faktor. Faktor pertama yaitu rasio air dengan kulit kopi (R) terdiri dari 3 taraf 1:1, 2:1, 3:1. Faktor kedua yaitu konsentrasi CMC (carboxyl methyl cellulose) (K) terdiri dari 4 taraf 0,5%, 0,75%, 1%, 1,25% dengan pengulangan 3 kali. Analisis yang dilakukan adalah aktivitas antioksidan, uji daya oles dan uji organoleptik (warna, rasa aroma, penerimaan umum). Hasil penelitian menunjukkan rasio air yang semakin tinggi menurunkan tingkat persentase antioksidan pada kulit kopi arabika, konsentrasi CMC yang semakin banyak menyebabkan selai cascara sulit di oles pada permukaan roti. Berdasarkan pengujian organoleptik warna, rasa, aroma dan penerimaan umum memiliki rerata nilai 6 yaitu suka dan selai cascara dapat diterima oleh panelis.The Effect of Different Ratios of Arabica Coffee Skin Juice and CMC (Carboxyl methyl cellulose) Concentrations on the Antioxidant and Organoleptic Activities of Cascara JamAbstract. This research was about jam made from Arabica coffee pulp with different water ratios to produce juice and the addition of CMC (carboxy methyl cellulose) concentration. This research aims to determine the effect of the ratio of water to Arabica coffee skins and the effect of adding CMC concentration on physical and chemical properties. The research design used was a Completely Randomized Design (CRD) with two factors. The first factor, namely the ratio of water to coffee pulp (R), consists of three levels: 1:1, 2:1, 3:1. The second factor is the concentration of CMC (carboxyl methyl cellulose) (K), consisting of 4 levels of 0.5%, 0.75%, 1%, 1.25% with repetition three times. The analyses carried out were antioxidant activity, spreadability test, and organoleptic test (color, taste, aroma, general acceptability). The results of the research show that a higher water ratio reduces the percentage level of antioxidants in Arabica coffee pulp, the water ratio in different CMC concentration gave significantly different effect (sig0.05) on the antioxidant value. The higher concentration of CMC makes cascara jam difficult to spread on the surface of the bread. The use of 1.25% CMC gave the lowest spreadibility, meanwhile the use of 0.5% and 0.75% gave spreadibility of cascara jam near 6 scale. Based on organoleptic testing of color, taste, aroma, and general acceptance, it has an average score of 6, and cascara jam can be accepted by the panelists.