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Journal : Wahana Matematika dan Sains

JUMLAH KOLONI BAKTERI PADA IKAN CAKALANG (Katsuwonus pelamis L.) DI PASAR TRADISIONAL KOTA SINGARAJA, BALI Ida Ayu Putu Suryanti
Wahana Matematika dan Sains: Jurnal Matematika, Sains, dan Pembelajarannya Vol. 12 No. 1 (2018): APRIL 2018
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.476 KB) | DOI: 10.23887/wms.v12i1.13844

Abstract

Ikan yang dijual di pasar tradisional mengalami kendala dalam mempertahankan kesegarannya. Hal tersebut disebabkan oleh mikroorganisme khususnya bakteri yang hidup pada ikan tersebut. Cakalang (Katsuwonus pelamis L.) merupakan ikan yang berasal dari laut timur Indonesia dan dikenal  sebagai salah satu ikan yang banyak diminati masyarakat khususnya di Singaraja, Bali. Penelitian ini bertujuan untuk mengetahui jumlah koloni bakteri yang tumbuh pada insang ikan cakalang yang berasal dari pedagang ikan di tiga pasar tradisional di kota Singaraja, Bali. Adapun sampel dari penelitian ini antara lain ikan cakalang yang berasal dari pasar anyar, pasar banyuasri dan pasar banyuning. Perhitungan jumlah bakteri menggunakan metode Standard Plate Count. Hasil penelitian ini menunjukkan rata-rata jumlah koloni bakteri yang ditemukan pada insang ikan cakalang di ketiga pasar cukup bevariasi. Bakteri terbanyak berjumlah 4,20 x 107 CFU/ml ditemukan pada pasar banyuasri dan tersedikit ditemukan pada pasar anyar yaitu 2,10 x 107 CFU/ml (rata-rata dari pengenceran 10-6). Bakteri gram negatif mendominasi pada setiap ikan cakalang yang dijual di pasar tradisional kota Singaraja.
Pertumbuhan Tanaman Gemitir (Tagetes erecta) Dengan Penggunaan Pupuk Organik dan Anorganik Ida Ayu Putu Suryanti
Wahana Matematika dan Sains: Jurnal Matematika, Sains, dan Pembelajarannya Vol. 13 No. 1 (2019): April, 2019
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.912 KB) | DOI: 10.23887/wms.v13i1.17130

Abstract

The purpose of this research were to determine the differences between organic and inorganic fertilizers in the growth of gemitir (Tagetes erecta) seen from the height and number of leaves. This research used a qualitative approach. This research was conducted by observing 56 fruit trees which were cultivated in two different beds and applied in organic and inorganic fertilizers at the same concentration and amount. To reduce the factors that inhibit plant growth, shade from plastic is made. Watering and maintenance were carried out every day with the same amount. Observations regarding plant height and number of leaves were carried out starting from week 1 to week 7. Data analysis was done by searching for the mean and percentage difference in yield from plant height and number of studies showing that the average plant height using organic fertilizer was 18.96 cm and organic fertilizer was 20.44 cm. This showed that there was a difference of 7.24% inorganic fertilizer higher than organic fertilizer. While the average number of leaves of gemitir plants added with organic fertilizer was 26.00 strands and inorganic fertilizers as much as 28.40 strands. The difference between the two was 8.5%, meaning that the use of inorganic fertilizers produces more leaves 8.5% or an average of 2-3 strands compared to organic fertilizers.
Co-Authors ., ANA MAULANA ., Desi Asrini Jumia Miarti ., Dewa Putu Surya d ., Dwi Agus Satyawati ., Gusti Ngurah Yoga Pradipta ., I Gede Surya Natha ., I Luh Neni Ardani ., I Made Dicky Satya Narayana ., I Putu Esha Darmawan ., I Wayan Eva Widi Pratama ., IB PUTU EKA WEDANTA ., Kadek Agus Priady Wahyu Winantha ., Kadek Sera Harlistya Udayani ., Ketut Eka Nudastra ., Made Dwi Oktaviani ., Ngakan Putu Ari Krisna Pratama ., Ni Made Widnyani ., Ni Putu Asrini ., Ni Putu Ayu Meita Kurniawati ., Ni Putu Hendrayani ., Ni Putu Indah Kumala Sari ., Ni Putu Lilik Widiari ., NURUL HIDAYAH ., Nyoman Ayu Tri Martriani ., Stanislaus Putu Mikael Mba Balu ANA MAULANA . Ayu Seoulina . Ayu Seoulina ., Ayu Seoulina Desak Made Citrawathi Desi Asrini Jumia Miarti . Dewa Putu Surya d . Drs.I Ketut Artawan,M.Si . Dwi Agus Satyawati . Gusti Ngurah Yoga Pradipta . Heny, Ajeng Purnama I Gede Surya Natha . I Gusti Agung Nyoman Setiawan I Kadek Hartawan . I Kadek Hartawan ., I Kadek Hartawan I Luh Neni Ardani . I Made Dicky Satya Narayana . I Made Sutajaya I Nyoman Wijana I Putu Esha Darmawan . I Wayan Eva Widi Pratama . I Wayan Sukra Warpala IB PUTU EKA WEDANTA . Ida Bagus Jelantik Swasta Kadek Agus Priady Wahyu Winantha . Kadek Sera Harlistya Udayani . Ketut Eka Nudastra . Ketut Srie Marhaeni Julyasih Made Dwi Oktaviani . Meitini Proborini Wahyuni Ngakan Putu Ari Krisna Pratama . Ni Kadek Ria Paramita Lestari . NI LUH PUTU MANIK WIDIYANTI Ni Made Widnyani . Ni Putu Asrini . Ni Putu Ayu Meita Kurniawati . Ni Putu Hendrayani . Ni Putu Indah Kumala Sari . Ni Putu Lilik Widiari . Ni Putu Nila Ristiari Ni Putu Ristiati Nurul Hidayah . Nyoman Ayu Tri Martriani . Pradipta Utama, Putu Anggan Putu Anggan Pradipta Utama Putu Budi Adnyana Rachmadhani, Rachmadhani Ristiari, Ni Putu Nila Stanislaus Putu Mikael Mba Balu . Sujana, P. Krisna Widyantara Tirta Pratiwi Ni Komang . Tirta Pratiwi Ni Komang ., Tirta Pratiwi Ni Komang Yan Ramona Yuliana, Ina