KARAKTERISTIK FISIK DAN PENDUGAAN UMUR SIMPAN BUBUK PEPTON LIMBAH IKAN GABUS DENGAN METODE PENDEKATAN KADAR AIR KRITIS
Debora Aradian Margareta, Dian Anggraini Suroto, S.T.P., M.P., M.Eng., Ph.D. ;Mariyatun, S.P.
2025 | Skripsi | TEKNOLOGI PANGAN & HASIL PERTANIAN
Bubuk pepton limbah ikan gabus merupakan
hidrolisat protein yang diproduksi menggunakan bahan dasar limbah ikan gabus
yang sudah diambil albuminnya kemudian dikeringkan menggunakan spray drying. Sebelum diedarkan, pepton yang diproduksi
harus memenuhi beberapa standar kualitas, seperti sifat fisik dan umur simpan.
Oleh karena itu, penelitian ini bertujuan untuk mengetahui karakteristik fisik
dan umur simpan bubuk pepton limbah ikan gabus yang dikemas dalam kemasan botol
HDPE menggunakan metode ASLT pendekatan kadar air kritis. Bubuk pepton limbah
ikan gabus disimpan pada suhu ruang dengan
5 kondisi kelembaban relatif ruang penyimpanan (RH 11%, 32%, 54%, 75%,
dan 97%) sehingga dapat diperkirakan umur simpannya berdasarkan model
pendekatan kadar air kritis. Hasil penelitian menunjukkan bahwa fisik bubuk
pepton limbah ikan gabus yang mencakup dispersibilitas, bulk density, dan
aktivitas air (aw) sudah mendekati pepton komersial (Millipore). Namun, untuk kelarutannya
masih lebih rendah dan kadar airnya masih lebih tinggi dibandingkan pepton
komersial (Millipore). Bubuk pepton
dengan kemasan botol HDPE yang disimpan pada kelembaban relatif 54% memiliki
umur simpan selama 527 hari (17,57 bulan) dan RH 75% selama 180 hari (6 bulan).
Snakehead fish
waste peptone powder is a protein hydrolysate produced using snakehead fish
waste as a base material that has been taken from albumin and then dried using
spray drying. Prior to
commercialization, the product must comply with established quality standards,
especially regarding its physical properties and shelf life. Therefore, this
study aims to determine the physical characteristics and shelf life of
snakehead fish waste peptone powder packaged in HDPE bottles using the ASLT
method of critical moisture content approach. Snakehead fish waste peptone
powder was stored at room temperature with 5 storage room relative humidity
conditions (RH 11%, 32%, 54%, 75%, and 97%) so that the shelf life could be
estimated based on the critical moisture content approach model. The results
showed that the physical properties of snakehead fish waste peptone powder
including dispersibility, bulk density, and water activity (aw)
already resembled commercial peptone (Millipore). However, the solubility is
still lower and the water content is still higher than commercial peptone
(Millipore). Peptone powder with HDPE
bottle packaging stored at 54% relative humidity has a shelf life of 527 days
(17,57 months) and 75% RH for 180 days (6 months).
Kata Kunci : bubuk pepton, karakteristik fisik, umur simpan, ASLT
