Mohammad Zainal Abidin
Animal Products Technology, Faculty Of Animal Science, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia

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Identifikasi Daging Babi Menggunakan Metode PCR-RFLP Gen Cytochrome b dan PCR Primer Spesifik Gen Amelogenin Yuny Erwanto; Sugiyono Sugiyono; Abdul Rohman; Mohammad Zainal Abidin; Dwi Ariyani
agriTECH Vol 32, No 4 (2012)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.775 KB) | DOI: 10.22146/agritech.9579

Abstract

A polymerase chain reaction–restriction fragment length polymorphism (PCR–RFLP) and species specific PCR methods had been applied for identifying pork in mixture of meat. Pork sample in various levels (1, 3, 5 and 10%) was prepared in mixture with beef, chicken and mutton. The primary CYTb1 and CYTb2 were designed in the mitochondrial cytochrome b b (cytochrome b) gene and PCR successfully amplified fragments of 359 bp. To distinguish pig species existence, the amplified PCR products of mitochondrial DNA were cut by BseDI restriction enzyme. The result showed that pig mitochondrial DNA was cut into 131 and 228 bp fragments. A polymerase chain reaction (PCR) method based on the nucleotide sequence variation in the amelogenin gene has been chosen for the specific identification of pork DNAs in mixture meat. The primers designed generated specific fragments of 353 and 312 bp length for pork. The specificity of the primary designed was tested on 4 animal species including pig, cattle, chicken and goat species. Analysis of experimental mixture meat demonstrated that 1% of raw pork tissues could be detected using PCR-RFLP with BseDI restriction enzyme but detection using species-specific PCR showed the cross reactivity to beef, chicken and mutton. The cytochrome b PCR-RFLP species identification assay yielded excellent results for identification of pig species. PCR-RFLP is a potentially reliable technique for detection of the existence of pork in animal food product for Halal authentication. ABSTRAKPenelitian ini dilakukan untuk mengaplikasikan metode deteksi daging babi dalam campuan daging dengan sapi, kambing dan ayam melalui PCR-RFLP dan PCR dengan primer spesifik untuk babi. Level kontaminasi daging babi dibuat sebesar 1, 3, 5 dan 10% dari total daging dalam campuran. Metode PCR-RFLP menggunakan sepasang primer yaitu gen cytochrome b dari mitokondria yang menghasilkan fragmen DNA sebesar 359 bp. Untuk mengetahui ada tidaknya kontaminasi babi dalam adonan daging tersebut diaplikasikan enzim restriksi BseDI yang dapat memotong DNA dari gen cytochrome b babi. Hasil penelitian menunjukkan bahwa gen cytochrome b dari babi dapat terpotong menjadi dua fragmen yaitu sebesar 228 bp dan 131 bp. Untuk desain primer spesifik digunakan gen amelogenin yang mempunyai sekuen yang berbeda diantara ke empat spesies uji yaitu babi, sapi, ayam dan kambing. Primer spesifik didesain pada panjang fragmen sebesar 353  dan 312 bp. Hasil penelitian menunjukkan bahwa kontaminasi daging babi sebesar 1% masih dapat terdeteksi dengan metode PCR-RFLP tetapi pengujian dengan primer spesifik yang ditujukan hanya untuk deteksi DNA babi masih menunjukkan reaksi silang dengan spesies hewan lain yaitu sapi, kambing dan ayam. Pengujian dengan PCR-RLP pada gen cytochrome b menghasilkan hasil yang lebih baik dan jelas untuk pengujian kontaminasi babi dibandingkan dengan PCR dengan primer spesifik. Metode PCR-RFLP merupakan metode yang potensial untuk analisis deteksi keberadaan unsur babi pada produk olahan pangan khususnya untuk deteksi status kehalalan.
Biosorption of Metal Ions on Methanol Dehydrogenase Enzymatic Activity of Bradyrhizobium japonicum USDA110 Novita Kurniawati; Ambar Pertiwiningrum; Yuny Erwanto; Nanung Agus Fitriyanto; Mohammad Zainal Abidin
Buletin Peternakan Vol 42, No 2 (2018): BULETIN PETERNAKAN VOL. 42 (2) MAY 2018
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v42i2.26195

Abstract

This research aims to understand the effect of metal ions bioabsorption which belong on different elemental groups to the methanol dehydrogenase (MDH) enzymatic activity in nitrogen-fixing bacteria Bradyhizobium japonicum USDA 110. Ten metal ions with each have 30μM concentration were added to grow Bradyhizobium japonicum USDA 110 in 10-1 diluted nutrient medium. The MDH activity test showed a similar result between the bacteria grown in medium without metal ions addition (control) and the bacteria were grown in a calcium ion/Ca2+ added media. The highest MDH enzymatic activity was shown on the bacteria grown in a magnesium/Mg2+ added medium, which showed 0.08 (U/mg) enzymatic activities. The addition of magnesium/Mg2+ metal ion accelerates the bacterial growth by 2.6 times and MDH activity by 1.28 times compared to control. The MDH enzyme is essential, especially for bacteria which exist in the soil environment, to adapt to high methanol concentration and to support bacterial anaerobic growth capacity along with plant symbiotic process. Moreover, the MDH activity staining method could also act as pollutant indicators like metal ions and hydrocarbon derivates. This research concluded that metal ions biosorption (calcium/Ca2+ and magnesium/Mg2+) are required for bacterial cells reproduction and oxidation of single carbon chain compounds like methanol. The nitrogen-fixing symbiotic bacteria, Bradyhizobium japonicum USDA 110 showed high MDH activity after the two metal ions absorption. However, contrary results were shown on vanadium/V3+, manganese/Mn2+, iron/Fe3+, copper/Cu2+, zinc/Zn2+, and aluminum/Al3+ absorption, which showed low MDH activity and cells biomass.
Direct Stimulation by Methanol Addition on the Cultured Medium for Methanol Dehydrogenase Protein Purification from Bradyrhizobium japonicum USDA110 Novita Kurniawati; Ambar Pertiwiningrum; Yuny Erwanto; Nanung Agus Fitriyanto; Mohammad Zainal Abidin
Buletin Peternakan Vol 42, No 3 (2018): BULETIN PETERNAKAN VOL. 42 (3) AUGUST 2018
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v42i3.28155

Abstract

Methanol dehydrogenase (MDH) enzyme was purified from Bradyrhizobium japonicum USDA110 cell-free extract. The bacteria were grown in a culture medium with direct 0.5% methanol addition aimed to stimulates the MDH catalytic enzyme activation. Bradyrhizobium japonicum USDA110 MDH enzyme was purified by using 25 mM 2-(N-morpholine) ethanesulfonic acid/MES pH 5.5 buffer and 1 M sodium chloride/NaCl which separated into three columns, the first column was PD-10 for buffer exchange; the second column was HiTrap Sepharose HP to obtain unbonded fraction in the column; and the third column was Mono S 5/50 GL integrated with two pumps HPLC (high-performance liquid chromatography) to obtain pure MDH enzyme for serial changing of 1 M NaCl-25mM MES pH 5.5 with the flow rate at 1 ml/min. The protein concentration and MDH catalytic enzyme activity were observed on each purification process starting from the cell-free extract to pure MDH enzyme. The pure MDH enzyme was obtained by Mono S 5/50 GL-HPLC purification which showed a single band on SDS PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis). The MDH enzyme purification from Bradyrhizobium japonicum USDA110 showed 90-fold purification, a sub-molecular weight of 63 kDa, specific activity at 2.69 U/mg, and optimum activity at a 35oC temperature and pH 9.     
Penyuluhan dan Pendampingan Pengolahan Limbah Peternakan Sapi Potong di Kelompok Tani Ternak Sido Mulyo Dusun Pulosari, Desa Jumoyo, Kecamatan Salam, Kabupaten Magelang Nanung Agus Fitriyanto; Suharjono Triatmojo; Ambar Pertiwiningrum; Yuny Erwanto; Mohammad Zainal Abidin; Endang Baliarti; Yustina Yuni Suranindyah
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 1, No 1 (2015): September
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (527.582 KB) | DOI: 10.22146/jpkm.16955

Abstract

Society services activity on cattle waste management system have been implemented in Sido Mulyo Livestock Farmers Group at Pulosari, Jumoyo, Salam, Magelang. Animal byproducts that consist of feces and urine of cattle wastewas processed into organic fertilizer compost and liquid fertilizer. Sido Mulyo Livestock Farmer Group has one unit of 20 m3 biodigester to accommodate the feces from approximately 30 cattle owned by the group member. Biogas has been used as a fuel source for family group members located around the cage. Slurry resulted from anaerobic digestion of biodigester disposed to pastures located on the right side of the cage. Ownership system in the groupis every group member hasa responsibility for taking care of their own cattle. The number of livestock owned by each member of the SidoMulyoLivestock Farmers Group ranged between 1 to 4 cattle. Society services methods that have been implemented was in the form of mentoring for a member of the Sido Mulyogroup.The other activities that have been implemented was the training and development of cattle industry, especially the handling of livestock waste in the form of feces, urine, and the feed residue. The activities was continued by the manufacture of compost packaging design, followed by the last series of activities such as monitoring and program development. The enthusiasm of the group members in joining to the extension activities is very good. The timing of the extension are determined in the afternoon after members of the group have finished searching feed for their cattle. The sustainability forwaste processing into organic fertilizer compost and liquid organic fertilizer becomes a major concern, because it is highly dependent on consumer demand.