Yayu Zurriyati
Balai Pengkajian Teknologi Pertanian (BPTP) Riau

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KAJIAN KUALITAS DADIH SUSU KERBAU DI DALAM TABUNG BAMBU DAN TABUNG PLASTIK Sisriyenni, Dwi; Zurriyati, Yayu
Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Vol 7, No 2 (2004): Juli 2004
Publisher : Jurnal Pengkajian dan Pengembangan Teknologi Pertanian

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Abstract

Assessment on fermented buffalo’s milk (dadih) was conducted in Muaro Jalai Village, Kampar Regency in2001. Objective of the study is to assess influence of storage time period to the dadih quality processed and stored inbamboo and propylene tubes. Completely Randomized Design with 10 replications and two treatments were used inthis assessment: (A) processed in bamboo tube, and (B) processed in propylene tube. Each treatment was stored for 3,6, 9 and 12 days. Data collected through organoleptic test consisting of 10 sample panelists. Data collected were taste,aroma, color, preference and thickness of the dadih. Results showed that the dadih quality processed in the propylenetube is relatively better than that in the bamboo tube. Storage period for the still palatable dadih was 9 daysprocessed and stored in propylene tube and 6 days processed and stored in the bamboo tube. Protein and fat contentsof the dadih were decreasing along with length of storage time period. On the other hand, total of bacteria colony andacidity of the dadih were increasing.Key words : storage, quality, fermented milk, tubeDadih merupakan produk susu fermentasi yang cukup digemari di wilayah Sumatera Barat dan Riau.Pengkajian ini dilaksanakan di Desa Muaro Jalai, Kabupaten Kampar, Riau pada tahun 2001. Tujuan pengkajianadalah untuk mengetahui pengaruh lama penyimpanan dari dadih dalam tabung bambu dan tabung plastik terhadapkualitas dan daya simpannya yang masih layak dikonsumsi. Pengkajian ini menggunakan Rancangan Acak Lengkap(RAL) 2 perlakuan dan 10 ulangan. Perlakuan yang dimaksud adalah (A) pembuatan dadih dalam tabung bambu dan(B) pembuatan dadih dalam tabung plastik, masing-masing dengan masa simpan 3, 6, 9 dan 12 hari. Parameter yangdiamati melalui uji organoleptik terhadap 10 orang panelis meliputi rasa, aroma, warna, kesukaan dan kekentalan.Hasil pengkajian menunjukkan bahwa kualitas dadih susu kerbau dalam tabung plastik relatif lebih baik dibandingkandadih dalam tabung bambu. Daya simpan dadih dalam tabung plastik yang masih layak dikonsumsi adalah 9 hari,sedangkan dadih dalam tabung bambu hanya 6 hari. Kadar protein dan lemak dari dadih akan menurun sejalandengan lamanya waktu penyimpanan. Sedangkan total koloni bakteri dan tingkat keasaman dari dadih justrumeningkat dengan lamanya waktu penyimpanan.Kata kunci : penyimpanan, kualitas, dadih susu, tabung bambu/plastik 
PALATABILITAS BAKSO DAN SOSIS SAPI ASAL DAGING SEGAR, DAGING BEKU DAN PRODUK KOMERSIAL Zurriyati, Yayu
JURNAL PETERNAKAN Vol 8, No 2 (2011): September 2011
Publisher : JURNAL PETERNAKAN

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Abstract

Meatball and sausage are two types of popular meat processing. This research was aimed to determine and comparethe palatability of meatball and sausage from fresh beef meat, frozen beef meat and commercial product. The research methodwas level of preference /acceptance of panelists with the organoleptic test included color, aroma, texture, elasticity and flavorof meatball and sausage with five criteria of hedonic scale of: 1 (strongly dislike), 2 (not like), 3 (neutral), 4 (like) and 5 (verylike). The values from panelists were statistically analyzed by using a non parametric Kruskal-Wallis method. The resultshowed that the characteristics of color, aroma, texture, elasticity and taste of the meatball and sausage from fresh meat,frozen meat or commercial product did not differ, although the panelists tended to be more like the meatball and sausage fromfresh meat.
Moleculer analysis of genotype kappa casein and composition of goat milk Etawah grade, Saanen and their crossbred Zurriyati, Yayu; Noor, R.R.; Maheswari, R.R.A.
Indonesian Journal of Animal and Veterinary Sciences Vol 16, No 1 (2011)
Publisher : Indonesian Animal Sciences Society

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Abstract

Polymorphism of goat casein gene closely linked to the quality of milk protein. κ-casein is one of the casein fractions that influence the shape and stability of grain milk. This study is aimed to identify the variation of genotype κ-casein and related with milk quality from Etawah grade, Saanen and their crossbreed (PE-SA). The number of dairy goats used in this study was 150 animals consisted of Etawah grade (48 animals), Saanen (51 animals) and PE-SA (51 animals). Steps of experiment were: blood and milk sampling collection, DNA amplification by PCR and the product digestion using Pst1 enzyme, κ-casein gene sequencing and analyzing the quality of fresh milk. The results showed that κ-casein gene is monomorphic by PCR-RFLP (Pst1) for all the goat breeds, but DNA sequencing indicated 38 point of mutation.  Observation on goat milk quality showed that Etawah grade milk had highest (P < 0.05) density value (1.033 ± 0.002) and solid non fat (9.577 ± 0.704%) than those of Saanen and PE-SA fresh milk goat. Key Words: Dairy Goats, Κ-Casein Gene, PCR-RFLP, Milk
Moleculer analysis of genotype kappa casein and composition of goat milk Etawah grade, Saanen and their crossbred Zurriyati, Yayu; Noor, R.R.; Maheswari, R.R.A.
Jurnal Ilmu Ternak dan Veteriner Vol 16, No 1 (2011): MARCH 2011
Publisher : Indonesian Animal Sciences Society

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Abstract

Polymorphism of goat casein gene closely linked to the quality of milk protein. κ-casein is one of the casein fractions that influence the shape and stability of grain milk. This study is aimed to identify the variation of genotype κ-casein and related with milk quality from Etawah grade, Saanen and their crossbreed (PE-SA). The number of dairy goats used in this study was 150 animals consisted of Etawah grade (48 animals), Saanen (51 animals) and PE-SA (51 animals). Steps of experiment were: blood and milk sampling collection, DNA amplification by PCR and the product digestion using Pst1 enzyme, κ-casein gene sequencing and analyzing the quality of fresh milk. The results showed that κ-casein gene is monomorphic by PCR-RFLP (Pst1) for all the goat breeds, but DNA sequencing indicated 38 point of mutation.  Observation on goat milk quality showed that Etawah grade milk had highest (P < 0.05) density value (1.033 ± 0.002) and solid non fat (9.577 ± 0.704%) than those of Saanen and PE-SA fresh milk goat. Key Words: Dairy Goats, Κ-Casein Gene, PCR-RFLP, Milk