Keutuhan Talus Kappaphycus alvarezii saat Panen Memengaruhi Karakteristik Karaginan
نویسندگان
چکیده
Kappaphycus alvarezii adalah alga merah yang memiliki kandungan karaginan. Pemutusan tali pengikat K. dengan cara menarik saat pemanenan mengakibatkan talus patah. Talus patah akan mengeluarkan getah berkandungan Penelitian ini bertujuan untuk mendapatkan karakteristik karaginan berdasar keutuhan dipanen. utuh, dan campuran diperoleh pelepasan rumput laut dari pengikat. Tahapan ekstraksi meliputi penimbangan, ekstraksi, netralisasi, perebusan, filtrasi, penjendalan, penirisan, pengeringan, penepungan. Karakteristik ditentukan kadar air, abu, abu tidak larut asam, sulfat, viskositas, kekuatan gel, spektrum infra merah. Analisis komponen utama pada spektra digunakan membedakan karaktersitik talus. Hasil menunjukkan rendemen utuh lebih banyak dibanding atau keduanya. ketiga masih memenuhi standar karaginan, yaitu: air 9,91-10,87%, 25,22-27,97%, asam 0,42-0,87%, sulfat 19,91-24,24%, viskositas 47,11- 56,76 cP, gel 376,62-457,92 g/cm². Gugus fungsional tersebut gugus penciri kappa yaitu ester 3,6-anhidrogalaktosa galaktosa-4-sulfat. Berdasarkan analisis merah, berbeda Kesimpulan utuh. Abstract is a red containing carrageenan. Termination of the binding rope by pulling during harvesting resulted in broken thallus. A thallus will release sap This study aims to obtain characteristics carrageenan based on integrity harvested. Whole, and mixed were obtained when seaweed was released from strings. The stages extraction include weighing, extraction, neutralization, boiling, filtration, coagulation, draining, drying flouring. Characteristics are determined water content, ash, acid-insoluble sulphate, viscosity, strength, infrared spectrum. Principal component analysis spectra used distinguish results showed that yield intact higher than or mixture both. three thalli still met standards, namely: content 9.91-10.87%, ash 25.22-27.97%, acid insoluble 0.42-0.87%, sulphate 19.91-24.24%, viscosity 47.11-56.76cP, strength 376.62-457.92 functional groups characterize carrageenan, namely esters, 3,6-anhydrogalactose, galactose-4-sulphate. Based principal spectra, an different conclusion shows
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ژورنال
عنوان ژورنال: Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan
سال: 2023
ISSN: ['1907-9133', '2406-9264']
DOI: https://doi.org/10.15578/jpbkp.v18i1.910