Garuda - Garba Rujukan Digital

Kadar Asam Klorogenat (CGA) Dalam Biji Kopi Arabika (Coffea Arabica) Asal Wamena, Papua Mangiwa, Septiani; Futwembun, Alowisya; Awak, Puteri M.
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 2 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Chlorogenic acid (CGA) is one of chemical compound in coffee and class of polyphenolic compounds that have activity as antioxidant. This study aims to determine the CGA contain in Arabica coffee beans from Wamena regency of Jayawijaya, Papua. Coffee beans were roasted by three roasting temperature i.e. 75, 150 and 2250 C while unroasted one was used as controls. Extraction was performed by soxhletation using metanol as a solvent for 5 hours. Separation and CGAcontent were determined using HPLC uses C-18 column, 150 mm length, 4,6 mm in diameter, with metanol-fosfat buffer 10 mM pH 2,6(30:70) as eluent, flow rate of 1 mL/minutes, injection volume of 20 µL and measured by spectrophotometer UV-Vis in 329 nm. The result of the study shows the CGAcontent in treated beans with temperature roasting of 75, 150 and 2250C respectively were 6,93 ; 9,33 and 7,12 % while the unroasted one was 7,73 %. The lowest CGA content was found in coffee beans roasted in 750C while the highest in 1500 C.

Kadar Asam Klorogenat (CGA) Dalam Biji Kopi Arabika (Coffea Arabica) Asal Wamena, Papua Septiani Mangiwa; Alowisya Futwembun; Puteri M. Awak
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 2 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Chlorogenic acid (CGA) is one of chemical compound in coffee and class of polyphenolic compounds that have activity as antioxidant. This study aims to determine the CGA contain in Arabica coffee beans from Wamena regency of Jayawijaya, Papua. Coffee beans were roasted by three roasting temperature i.e. 75, 150 and 2250 C while unroasted one was used as controls. Extraction was performed by soxhletation using metanol as a solvent for 5 hours. Separation and CGAcontent were determined using HPLC uses C-18 column, 150 mm length, 4,6 mm in diameter, with metanol-fosfat buffer 10 mM pH 2,6(30:70) as eluent, flow rate of 1 mL/minutes, injection volume of 20 µL and measured by spectrophotometer UV-Vis in 329 nm. The result of the study shows the CGAcontent in treated beans with temperature roasting of 75, 150 and 2250C respectively were 6,93 ; 9,33 and 7,12 % while the unroasted one was 7,73 %. The lowest CGA content was found in coffee beans roasted in 750C while the highest in 1500 C.

Uji Kelayakan Teh Herbal Kulit Batang Tali Kuning (Arcangelsia flava (L.) Merr) Alowisya Futwembun; Yuliana Rut Yabansabra; Nurhairi Nurhairi; Desinta O Sitokdana
SIMBIOSA Vol 8, No 1 (2019): JURNAL SIMBIOSA
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/sim-bio.v8i1.1870

Teh adalah minuman yang mengandung kafein, sebuah infusi yang dibuat dengan cara menyeduh daun, pucuk daun, atau tangkai daun yang dikeringkan dari tanaman Camellia sinensis dengan air panas. Teh Herbal adalah sebutan racikan bunga, daun, biji, akar, atau buah kering untuk membuat minuman yang juga disebut teh herbal. Penelitian ini bertujuan untuk mengetahui kelayakan ekstrak kulit batang tali (akar) kuning (A.flava.Merr) sebagai teh herbal. Hasil yang didapatkan dari penelitian ini yaitu : kadar air 0,24 %, kadar ekstrak dalam air 42,38 %, kadar serat kasar 1,04 %, kadar abu larut dalam air dari abu total 3,37 %, kadar alkalinitas abu larut dalam air (sebagai KOH) %, kadar abu total 1,78 %, kadar abu tak larut dalam asam 0,01 % dan juga terdapat senyawa metabolit sekunder seperti: tanin, saponin dan flavanoid yang berguna dan bermanfaat bagi tumbuhan dan manusia. Uji kualitatif tersebut telah menghasilkan delapan parameter yang sesuai dengan SNI 3836:2013 Teh Kering dalam Kemasan.

PELATIHAN SKRINING FITOKIMIA BAGI GURU-GURU SAINS TINGKAT SMA Yuliana Yabansabra; Alowisya Futwembun
JURNAL PENGABDIAN PAPUA Vol 1, No 1 (2017)
Publisher : LPPM Uncen

The preliminary test research in the active compounds of plants are needed. The preliminary test often known as phytochemical screening is the qualitative test for the review of secondary metabolites content determine in group samples. Nowadays, Indonesian society starts to publish the heritage about traditional medicine, using plant or animal species, thus came the term "Back to Nature" but still many plants are known yet about the content of secondary metabolites based on qualitative and quantitative. It should be carried out research related to content and activities of certain medicinal plants. The training screening candidates phytochemical medicinal plants for high school teachers gave the positive impact to review and conduct the simple research especially medicinal plants (ethnobotany and chemistry natural materials). A total of twenty participants were attended the training activities. The training activities was run well.

Title

Found 4 Documents
Search

Abstract

Abstract

Abstract

Abstract

Title Search

Found 4 Documents Search

Abstract

Abstract

Abstract

Abstract

Title

Found 4 Documents
Search