Pemanfaatan Ekstrak Buah Mangrove Untuk Menghambat Pembentukan Melanosis Pada Udang Vaname (Litopenaeus Vannamei)

Application of Mangrove Extract for the Melanosis Inhibition in Whiteleg Shrimp (Litopenaeus vannamei)

  • Tatty Yuniarti Prodi Penyuluhan Perikanan, Sekolah Tinggi Perikanan, Politeknik Ahli Usaha Perikanan (POLTEK AUP) Jalan AUP, Pasar Minggu, Jakarta Selatan, 12520 Telepon 021 78830275
  • Yuliati Sipahutar Prodi Teknologi Pengolahan Hasil Perikanan, Sekolah Tinggi Perikanan, Politeknik Ahli Usaha Perikanan (POLTEK AUP) Jalan AUP, Pasar Minggu, Jakarta Selatan, 12520 Telepon 021 78830275
  • Husnul Khatimah Ramli Prodi Teknologi Pengolahan Hasil Perikanan, Sekolah Tinggi Perikanan, Politeknik Ahli Usaha Perikanan (POLTEK AUP) Jalan AUP, Pasar Minggu, Jakarta Selatan, 12520 Telepon 021 78830275
  • Noor Pitto Sari Nio Lita Prodi Penyuluhan Perikanan, Sekolah Tinggi Perikanan, Politeknik Ahli Usaha Perikanan (POLTEK AUP) Jalan AUP, Pasar Minggu, Jakarta Selatan, 12520 Telepon 021 78830275
Keywords: A. marina, bintik hitam, R. apiculata, R. mucronata, sodium metabisulfit

Abstract

 Mangrove diketahui mempunyai kemampuan bioaktif untuk menghambat aktivitas enzim tirosinase. Penelitian bertujuan untuk menentukan konsentrasi ekstrak buah mangrove yang berperan dalam menghambat melanosis udang vaname selama penyimpanan 10 hari pada 0oC. Buah mangrove yang digunakan adalah Rhizophora mucronata, Rhizophora apiculata dan Avicennia marina. Buah mangrove diekstraksi menggunakan air. Konsentrasi ekstrak yang digunakan adalah 25% dan 50%. Udang disimpan selama 10 hari pada suhu 0oC menggunakan coldbox. Rancangan penelitian menggunakan Rancangan Acak Lengkap Faktorial (RALF). Parameter uji melanosis, organoleptik, warna dianalisis dengan ANOVA, dengan uji lanjut duncan. Parameter organoleptik dianalisis dengan uji non parametrik kruskal wallis, uji lanjut multiple comparison. Hasil penelitian menunjukkan udang yang direndam menggunakan ekstrak mangrove R. mucronata 50% dan R. apiculata 50% kemudian disimpan pada suhu 0oC mempunyai nilai melanosis terendah dibandingkan dengan ekstrak mangrove lainnya. Kenampakan organoleptik udang dapat dipertahankan dengan perendaman ekstrak R. mucronata 50% dan R. apiculata 50%, seluruh ekstrak tidak mempengaruhi bau khas dan tekstur udang vaname. Uji warna menunjukkan R. mucronata 25% mempunyai nilai L* tertinggi yang tidak berbeda nyata dengan R mucronata 50%. Nilai L* udang yang direndam A. marina 25% memiliki tingkat keefektifan terendah dalam mempertahankan nilai L*, seluruh jenis ekstrak, tidak mempengaruhi nilai a* dan b* warna udang. Ekstrak buah mangrove R. mucronata 50% dan R.apiculata efektif dalam menghambat melanosis udang.

 

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Published
2020-04-08