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All Journal INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi Pasundan Food Technology Journal (PFTJ)
Marthia, Nabila
Fakultas Teknik - Universitas Pasundan
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : Pasundan Food Technology Journal (PFTJ)

 1 
PENGARUH JENIS MEDIA KULTUR TERHADAP KONSENTRASI BIOMASSA Nannochloropsis sp. Nabila Marthia
Pasundan Food Technology Journal (PFTJ) Vol 7 No 3 (2020): PASUNDAN FOOD TECHNOLOGY JOURNAL (PFTJ)
Publisher : Department of Food Technology, Universitas Pasundan, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/pftj.v7i3.3190

Abstract

This study aims was to determine the effect of media type on biomass concentration and chlorophyll content in Nannochloropsis sp. and determine the best type of media for the highest chlorophyll production in this microalgae. The variables observed were the optimum growth and harvest time for Nannochloropsis sp., biomass concentration, and chlorophyll content from biomass extraction. The results showed that the wet biomass concentration value of Nannochloropsis sp. is 10.98 g / L for Walne media, and 5.10 g / L for Guillard media. Chlorophyll content extracted from dry biomass in microalgae Nannochloropsis sp. with Walne culture media was higher than Guillard media with a total chlorophyll of 353.045 µg / mL. So that the best chlorophyll production is cultivation using Walne culture media.
PEMISAHAN KAFEIN DENGAN METODE MICROWAVE ASSISTED EXTRACTION (MAE) TERHADAP 4 JENIS BIJI KOPI ROBUSTA Nabila Marthia
Pasundan Food Technology Journal (PFTJ) Vol 8 No 2 (2021): PASUNDAN FOOD TECHNOLOGY JOURNAL (PFTJ)
Publisher : Department of Food Technology, Universitas Pasundan, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/pftj.v8i2.4172

Abstract

Penelitian ini untuk melakukan isolasi terhadap kafein dari biji kopi Robusta yang berasal dari 4 daerah di Jawa Barat dengan metode Microwave Assisted Extraction (MAE) dan menentukan kadar kafein tertinggi dari kopi-kopi tersebut. Variabel yang diamati antara lain jenis pelarut dan kadar kafein hasil ekstraksi kopi. Hasil penelitian menunjukkan bahwa nilai rendemen tertinggi berdasarkan berat kering kafein diperoleh ekstrak dengan pelarut diklorometana sebesar 0,48-0,86%. Proses isolasi kafein dinilai berhasil dari hasil pengujian KLT dan GC-MS. Hasil pengujian kadar kafein menunjukkan kadar kafein tertinggi dimiliki oleh biji kopi Robusta Gunung Halu sebesar 2,29% dengan ekstraksi menggunakan diklorometana.
Co-Authors Rohima, Ira Endah