Processed cheese is a natural cheese that has undergone further processing to produce a more homogeneous texture. Bromelain enzyme derived from pineapple fruit which was used as a coagulant. Emulsifier in the form of monosodium phosphate (NaH2PO4) was used as an emulsifier. This study was aimed to determine the effect of the NaH2PO4 addition on moisture content, yield, and acceptability of processed cheese with pineapple juice coagulant. This research was conducted by experimental method using a completely randomized design with a significance level of 5% for 3 treatment concentrations (P1=2%, P2-3%, and P3=4%). Each treatment was repeated 6 times. If there was a difference, Duncan's further test is carried out. Acceptability data was tested using Kruskal-Wallis, if there was a difference, the Mann-Whitney further test was carried out. The results showed that the use of NaH 2 PO 4 with concentration of P1 (2%), P2 (3%) and P3 (4%) had no effect on moisture content and yield. The best acceptability value was found in P2 (3%) with a numerical scale for the best taste, namely 3.67 (slightly like-like), color 3.73 (slightly like-like), aroma 4.27 (like-like very much), texture 3.60 (slightly like-like), and the total acceptance is 3.53 (slightly like-like).
Dekomposisi awal memiliki peran penting dalam proses pengomposan. Penelitian ini bertujuan untuk menentukan dinamika populasi mikroba dan degradasi serat kasar selama proses dekomposisi awal. Limbah ternak pada umumnya memiliki rasio karbon dan nitrogen yang rendah sehingga diperlukan penambahan jerami padi sebagai sumber karbon. Penelitian ini menggunakan tiga perlakuan rasio C/N: 20, 25, dan 30. Perubahan suhu, pH, jumlah total bakteri, jumlah actinomycetes, jumlah kapang diamati selama 7 hari proses dekomposisi awal. Kadar lignin, selulosa, dan hemiselulosa diamati pada akhir dekomposisi awal. Hasil penelitian menunjukkan bahwa rasio C/N 30 menghasilkan proses dekomposisi tertinggi, dengan fase termofilik terjadi pada hari ke 2 dengan suhu tertinggi 57oC dan pH 8,79. Temperatur mencerminkan proses dekomposisi yang tinggi melalui aktivitas mikroba dalam mendekomposisi bahan organik. Total jumlah bakteri dan actinomycetes yang dicapai pada fase termofilik berturut-turut 179 x 1011 cfu/g dan 87 x 105 cfu/g. Kapang berkembang pada suhu mesofilik pada hari ke 5 dan volume total tertinggi mencapai 48 x 1011 cfu/g pada hari ke 6. Proses dekomposisi awal mampu mereduksi lignin sebesar 30,57%. Hasil penelitian menunjukkan bahwa dinamika populasi mikroba dipengaruhi oleh ketersediaan nutrisi dalam substrat yang dijelaskan oleh rasio C/N. Pertumbuhan bakteri dan aktinomycetes tertinggi terjadi pada suhu termofilik sementara kapang berkembang pada suhu mesofilik. Kandungan lignin dan hemiselulosa pada substrat menurun.
Abstract. Livestock waste is one of the contributors to greenhouse gas emissions, therefore it needs proper handling so that the impact on the environment can be minimized. Therefore, socialization and education on waste handling is carried out in an effort to reduce greenhouse gas emissions. Socialization to farmer is done online using whatsapp and zoom meetings platform. Partner are farmers from Cileles and Cilayung Villages, Jatinangor Sumedang District. Waste treatment extension activities as an effort to reduce greenhouse gas emissions are carried out by creating audio visuals in the form of videos and e-flyers uploaded to the media youtube and whatsapp partner groups. In general, farmers understand that the waste generated from their livestock activities must be managed properly, but they do not understand that the impact of improper management will result in greenhouse gas emissions. After extension activities was carried out, there was an increase in farmers' knowledge, both on the potential of livestock waste is one of as a greenhouse gases contributors and good waste processing techniques.Keywords: animal waste, organic fertilizer, greenhouse gasAbstrak. Limbah peternakan memberi kontribusi yang cukup besar terhadap peningkatan emisi gas rumah kaca, diperlukan penanganan yang tepat sehingga dampak terhadap lingkungan dapat diminimalkan. Oleh karena itu, dilakukan sosialisasi dan edukasi penanganan limbah ternak sebagai upaya mengurangi emisi gas rumah kaca. Mitra merupakan peternak yang berasal dari Desa Cileles dan Desa Cilayung Kecamatan Jatinangor Sumedang. Kegiatan penyuluhan pengolahan limbah sebagai upaya mengurangi emisi gas rumah kaca dilakukan dengan membuat audio visual berupa video dan e-flyer yang diunggah ke media youtube dan whatsapp grup mitra. Metode yang digunakan adalah penyuluhan secara daring menggunakan media zoom meeting. Secara umum peternak mengerti bahwa limbah yang ditimbulkan dari kegiatan usahanya harus dikelola dengan baik, namun mereka tidak memahami bahwa dampak pengelolaan yang tidak tepat akan mengakibatkan emisi gas rumah kaca. Setelah dilakukan penyuluhan, terdapat peningkatan pengetahuan peternak baik potensi limbah ternak sebagai kontributor gas rumah kaca maupun teknik pengolahan limbah yang baik.Kata Kunci: limbah ternak, pupuk organik, gas rumah kaca
Penelitian ini bertujuan untuk mengetahui tingkat penyusutan dan penurunan nisbah C/N padavermicompostingcampuran feses sapi perah dan jerami padi menggunakan Eisenia fetida. Penelitian dilaksanakan dengan menggunakan metode Rancangan Acak Lengkap (RAL). Perlakuan yang diberikan adalah tiga perlakuan nisbah C/N yakni : 25 (T1), 30 (T2), dan 35 (T3). Proses diawali dengan dekomposisi awal selama 7 hari, kemudian dilanjutkan dengan vermicompostingselama 15 hari. Data dianalisis melalui sidik ragam dan untuk mengetahui perbedaan antar perlakuan dilakukan uji Duncan. Hasil penelitian menunjukkan bahwa : (1) Penyusutan selama dekomposisi awal berkisar antara 20,5 – 28,8 % dengan nisbah C/N mencapai 15,5-17,5. (2) Penyusutan selama vermicompostingberkisar antara 52,35 – 60,50 % dengan nisbah C/N mencapai 10,5 – 11,0.
This study aims to examine the effect of the use of jackfruit leaf juice as a natural disinfectant to decrease the amount and the inhibition of bacteria in incubator. The method used in this research is experimental method in laboratory using Completely Randomized Design with 3 treatments and 6 replications. The three treatments are P1 = juice of jackfruit leaf with dilution 75% (25% concentration), P2 = juice of jackfruit leaf with 50% dilution (50% concentration), and P3 = juice of jackfruit leaves with 25% dilution (75% concentration). Data were analyzed by means of verbalization and to know the difference between treatments was done by Duncan test. The results showed that the juice solution of jackfruit leaves contain phenol compounds namely flavonoids, saponins and tannin compounds which are anti microbial substances. Treatment of P3 (75%) decreased the number of bacteria as much as 82.54% and the widest drag 0.3 cm for bacteria coccus and 0.5 cm for bacteria bacil.
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