PERBANDINGAN PENGGUNAAN PELARUT ALKALI (KOH DAN NaOH) TERHADAP HASIL EKSTRAKSI RUMPUT LAUT MERAH (Eucheuma cottonii, sp) ASAL ACEH JAYA

Abstract

Indonesia is an archipelago that is rich in natural marine potential. One of the provinces in Indonesia that is rich in natural marine potential is Aceh. Aceh, which is rich in seaweed, has good prospects to improve the economy of its people. One of the seaweed cultivated in Aceh is Eucheuma cottonii, which has carrageenan content. In the process of carrageenan processing from seaweed alkali is needed which aims to produce carrageenan granules. Precipitation of carrageenan was carried out by heat extraction method which varied alkaline solvents namely NaOH and KOH and than do FTIR and SEM analysis. From the results of FTIR in the absorption area of ​​1010-1080 cm-1 showed the absorption of glycosidik bonds and at 849-850 cm-1 uptake was absorption from galactose-4-phosphate bonds. In wavelength is a type of carrageenan kappa. SEM results show different and uneven carrageenan surfaces.

Eco-friendly extraction carrageenan from seaweed using a ball mill: celite effect during filtration and ion addition on carrageenan physicochemical properties

“…The wave number 925.83 cm − 1 indicates the 3,6anhydrogalactose group's existence (Al-Nahdi et al, 2019), the absorption peak of the 3,6anhydrogalactose group is at 925 − 935 cm − 1 . Furthermore, both treatments had an absorption wave number of 848.68 cm − 1 , which is the absorption of the galactose 4-sulfate bond, where this bond indicates that the carrageenan produced is included in the kappa-carrageenan type (Bhernama, 2019).…”

Pengaruh Karagenan dari Rumput Laut Kappaphycus alvarezii terhadap kesegaran Ikan Gurami (Osphronemus gouramy)

“…Metode yang digunakan dalam mengekstraksi karagenan mengacu pada Bhernama (2019). Rumput laut K. alvarezii dihaluskan menjadi tepung, kemudian direbus menggunakan air sebanyak 40-50 kali berat rumput laut kering selama 1 jam pada suhu 80-90 °C dan pH larutan diatur pH 8 dengan cara menambahkan larutan NaOH 0,1 N. Hasil ekstraksi disaring menggunakan kertas saring yang bersih dan filtratnya diletakkan dalam wadah.…”

Kombucha Batang Pisang Kepok: Kadar Fenolik Total, Aktivitas Antibakteri, dan Pengaruh terhadap Viabilitas Lactobacillus gasseri

“…Identifikasi fitokimia dilakukan terhadap senyawa tanin, flavonoid, alkaloid, terpenoid, steroid, saponin dan antrakuinon dengan metode standar (Nurmiati & Wijayanti, 2018), (Bhernama, 2020) & (Wijayanti & Susilowati, 2017).…”