GDL

Determination of the level of ripeness and quality of coffee seed based on the chlorophyll and anthocyanin contents on the skin

Tugas Akhir, 036 / 2021 / TKI
Undergraduate Theses from JBPTPPOLBAN / 2024-01-19 10:13:56
Oleh : Lathifa Abirrania Sausan - 181411081 & Salsabila Aurelia Wulandanisa - 181411090 (lathifa.abirrania.tki18@polban.ac.id )
Dibuat : 2024-01-19, dengan 4 file

Keyword : maturity level; chlorophyll; anthocyanins; robusta coffee; arabica coffee
Subjek : tingkat kematangan; klorofil; antosianin; kopi robusta; kopi arabika

Tingkat kematangan buah kopi ditandai dengan perubahan warna kulit kopi dari hijau hingga merah yang menunjukkan berkurangnya pigmen klorofil dan terbentuknya antosianin. Penelitian ini akan mempelajari tentang tingkat kematangan biji kopi berdasarkan kandungan klorofil dan antosianin pada kulitnya; persamaan matematika hubungan antara kandungan klorofil dengan antosianin terhadap umur buah kopi; pengaruh kadar air dan asam klorogenat terhadap kualitas biji kopi. Proses pengumpulan data dilakukan dari kopi robusta dan arabika yang berumur 1; 7; 14; 21; 28; 32 hari. Sampel pada setiap tingkat kematangan dipisahkan antara kulit dan bijinya, selanjutnya di maserasi; dianalisis kadar klorofil; antosianin; kadar air serta kadar asam klorogenat menggunakan metode spekrofotometri UV/VIS. Hasil penelitian ini menunjukkan kandungan klorofil kopi arabika blancing dan nonblancing sebesar 0,819-8,226 mg/L dan 1,877-6,612 mg/L sedangkan robusta blancing dan nonblancing yaitu 2,509-4,481 mg/L dan 1,554-4,892 mg/L sementara kandungan antosianin pada kopi robusta blanching dan nonblanching sebesar 0,083-0,668 mg/L dan 0,501-2,171 mg/L sedangkan arabika blancing dan nonblanching yaitu 0,083-0,501 mg/L dan 0,501-2,087 mg/L. Persamaan matematika kopi robusta blancing yaitu sedangkan kopi arabika blancing dan nonblancing yaitu dan . Kadar air kulit kopi robusta blancing dan nonblancing serta arabika blancing dan nonblancing sebesar 75,22-79,79% dan 73,66-76,30%; 73,92-82,91% dan 73,93-83,41%. Kadar air dan asam klorogenat biji kopi robusta sebesar 45,507-56,716% dan 2,088-7,624 ppm. Kandungan antosianin tidak dapat dibuat persamaan matematika karena hasil yang diperoleh tidak memenuhi kriteria yaitu 0,75R21,0 dan sig <0,05.

Deskripsi Alternatif :

The maturity level of coffee cherries is indicated by a change in the color of the coffee skin from green to red which indicates a decrease in chlorophyll pigment and the formation of anthocyanins. This research will study about the maturity level of coffee beans based on the chlorophyll and anthocyanin content in the skin; the mathematical equation of the relationship between the content of chlorophyll and anthocyanins on the age of coffee cherries; effect of water content and chlorogenic acid on the quality of coffee beans. The data collection process was carried out from robusta and arabica coffee aged 1; 7; 14; 21; 28; 32 days. Samples at each level of maturity are separated between the skin and seeds, then macerated; analyzed chlorophyll content; anthocyanins; water content and chlorogenic acid content using UV/VIS spectrophotometry method. The results of this study showed that the chlorophyll content of arabica coffee blancing and nonblancing were 0.819-8.226 mg/L and 1.877-6.612 mg/L which was greater than that of robusta coffee blancing and nonblancing were 2.509-4.481 mg/L and 1.554-4.892 mg/L, while the anthocyanin content in Robusta coffee blancing and nonblancing were 0.083-0.668 mg/L and 0.501-2.171 mg/L, which was higher than arabica coffee blancing and nonblancing were 0.083-0.501 mg/L and 0.501-2.087 mg/L. Robusta coffee mathematical equations blancing is while arabica coffee blancing and nonblancing are and . The water content of the skin robusta coffee blancing and nonblancing and arabica blancing and nonblancing of 75.22-79.79% and 73.66-76.30%; 73.92-82.91% and 73.93-83.41%. The water content and chlorogenic acid of robusta coffee beans are 45.507-56.716% and 2.088-7.624 ppm. Anthocyanin content can not be created mathematical equations for the results obtained do not meet the criteria, is 0.75≤R2≤1.0 and sig> 0.05.

Beri Komentar ?#(5) | Bookmark

Properti	Nilai Properti
ID Publisher	JBPTPPOLBAN
Organisasi
Nama Kontak	Erlin Arvelina
Alamat	Jl. Trsn. Gegerkalong Hilir Ds. Ciwaruga
Kota	Bandung
Daerah	Jawa Barat
Negara	Indonesia
Telepon	022 201 3789 ext. 168, 169, 239
Fax	022 201 3889
E-mail Administrator	erlin.arvelina@polban.ac.id
E-mail CKO	erlin.arvelina@polban.ac.id