Judul: Kajian Sifat Fungsional, Mikrostruktur, dan Pendugaan Umur Simpan Surimi Kering dan Ikan Marlin (Makaira sp.)
Abstrak: Penelitian ini bertujuan untuk mengkaji sifat fungsional dan mikrostruktur surimi kering yang digunakan sebagai bahan baku pengolahan produk berbasis surimi, menentukan batasan-batasan air terikat pada kurva ISA • dan menentukan pendugaan umur slmpannya.
Keyword: mikrostruktur, surimi kering, sosis

Judul: Karakteristik Gelatin Sisik Ikan Nila dan Aplikasinya pada Surimi
Abstrak: Surimi merupakan produk daging ikan lumat yang biasa dipergunakan sebagai bahan pembuatan produk gel ikan. Surimi yang memiliki pembentukan gel kuat dapat mendukung produk gel ikan menjadi kompak, elastis, dan tahan lama. Gelatin diketahui memiliki peran sebagai pembentuk gel pada produk. Penelitian ini bertujuan menentukan karakteristik gelatin sisik ikan nila dan pengaruh penambahan gelatin sisik ikan nila pada surimi kurisi terhadap karakteristik gel kamaboko. Analisis yang digunakan meliputi analisis gelatin terdiri rendemen, kadar air, kadar abu, pH, viskositas, setting point, dan bobot molekul serta analisis gel surimi terdiri pH, profil tekstur (kekerasan, elastisitas, kekompakkan, kekenyalan), daya mengikat air, dan derajat putih. Rendemen dan titik suhu gel gelatin sisik ikan nila sebesar 13,01±0,59% dan 18,17±0,28oC. Karakteristik gelatin sisik ikan nila penelitian ini sudah memenuhi SNI 8622:2018 dan GMIA 2019. Perlakuan penambahan variasi konsentrasi gelatin sisik ikan nila pada surimi berpengaruh nyata terhadap karakteristik pH surimi, derajat putih, kekerasan dan kekenyalan kamaboko.
Keyword: karakteristik, gelatin, surimi

Judul: Distribution and Diversity of Ectoparasite Mites on Geckos in Indonesia
Abstrak: Data on the diversity and dispersal of parasitic mites on house geckos in Indonesia are very scarce. In this work, the distribution and diversity of mites living on three species of house geckos, namely Cosymbotus platyurus, Hemidactylus frenatus, and H. garnotii collected throughout Indonesia, has been elaborated. Geckos and mites were captured and immediately preserved in 70% ethanol. Whole mount of the mites was prepared by clearing in lactophenol followed by mounting on polyvinyl lactophenol solutions. The SEM preparation was conducted to examine the detail morphological characters of the mites. The results showed that among 448 individuals of geckos, 221 geckos were infected by Geckobia mites. Prevalences of C. platyurus, H. frenatus, and H. garnotii infested by mites were 14.8%, 50.69%, and 79.6%, respectively. Three different spesies of Geckobia (G1, G2, and G3) could be differentiated; and based on similarities of their morphological characters to ones described in published literatures, Geckobia G2 is Geckobia glebosum and Geckobia G3 is Geckobia bataviensis while G1 could not be identified to the species level. The highest mean intensity of Geckobia G1 infestation was found on H. garnotii (I=7.0), G. glebosum infestation on H. frenatus (I=3.5), and G. bataviensis infestation on H. garnotii (I=11.8). In general, C. platyurus was infested by the least number of mites. Geckobia G1 were found living on the skin folds on the claws, G. glebosum were found mainly on the body and thigh, and G. bataviensis were found on almost all parts of the host’s body. Geckobia mites are distributed randomly throughout Indonesian Archipelago, following the pattern of distribution of their hosts. So it is concluded that Geckobia G1, G. glebosum, and G. bataviensis are sympatric.
Keyword: