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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vegetalika Jurnal Ilmu Pertanian Agroland : Jurnal Ilmu-Ilmu Pertanian Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology International Journal of Renewable Energy Development Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Soils Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Berkala Ilmiah Pertanian Jurnal Agro Teknologi Tropika Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Sains Tanah AGRIVITA, Journal of Agricultural Science agriTECH Indonesian Journal of Biotechnology Jurnal Tanah dan Air Planta Tropika Pharmacon Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Perlindungan Tanaman Indonesia INDONESIAN JOURNAL OF PHARMACY JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Bioteknologi & Biosains Indonesia (JBBI) Caraka Tani: Journal of Sustainable Agriculture Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Indonesian Food and Nutrition Progress OLDI (Oseanologi dan Limnologi di Indonesia) JURNAL PERTANIAN jurnal Ilmu Pertanian (Agricultural Science) Jurnal Tanah dan Air (Soil and Water Journal) Kaunia: Integration and Interconnection of Islam and Science Journal Engagement: Jurnal Pengabdian Kepada Masyarakat Indonesian Journal of Pharmacology and Therapy

JAKA WIDADA

Departemen Mikrobiologi Pertanian, Fakultas Pertanian, Universitas Gadjah Mada

Author-ID : 414939

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Physics Social Sciences Veterinary

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Kebutuhan Air, Efisiensi Penggunaan Air dan Ketahanan Kekeringan Kultivar Kedelai Sri Suryanti; Didik Indradewa; Putu Sudira; Jaka Widada
agriTECH Vol 35, No 1 (2015)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Water use (WU) and water use efﬁciency (WUE) provides a simple methods of assessing whether yield is affected by water supply. Drought tolerance cultivars havestable yield under drought. The objective of this study was to asses water use, water use efﬁciency, and drought tolerance of soybean cultivars. The 18 × 4 factorial experiment was set in a completely randomized design with three replications during May to October 2012 at the Tridharma Research Station Faculty of Agriculture, Gadjah Mada University at altitute 110 m dpl. Eighteen soybean cultivars were assigned as the ﬁrst factor and four level watering intervals i.e. 1days, 2 days, 4 days and 8 days until ﬁeld capasity were assigned as the second factor. Data were recorded for water use at 15 days until 56 days after planting andwater use efﬁciency at 56 days after planting. Data for stress index andstress susceptibility index were calculated at 84 days after planting. Results indicated that Grobogan and Galunggung were identiﬁed as drought tolerance cultivars with water use values ranged from 4.87 to 4.98 mm and water use efﬁciency value 5.16 gram/mm. Burangrang, Kaba, Argomulyo, Panderman, Baluran, Ijen, Petek, Malabar were identiﬁed as medium drought tolerance cultivars with water use values ranged from 3.98 to 6.14 mm and water use efﬁciency values ranged from 3.69 to 5.51 gram/mm. Sibayak, Tanggamus, Anjasmoro, Wilis, Garut, Gepak, Sinabung, and Seulawah were identiﬁed as sensitive cultivars with water use values ranged from 5.37 to 5.95 mm and water use efﬁciency values ranged from 3.49 to 5.60 gram/mm.ABSTRAKKebutuhan air dan eﬁsiensi penggunaan air merupakan cara sederhana untuk mengetahui apakah hasil tanaman dipengaruhi oleh pasokan air. Tanaman tahan kering mengalami penurunan hasil lebih rendah ketika terjadi cekaman kekeringan. Penelitian ini dilakukan untuk mengetahui kebutuhan air tanaman, eﬁsiensi penggunaan air dan variasi ketahanan kultivar kedelai terhadap cekaman kekeringan. Rancangan percobaan yang digunakan adalah rancangan acak lengkap (RAL) faktorial 18 x 4 dengan tiga ulangan. Penelitian dilaksanakan pada bulan Mei sampai Oktober 2012 di Kebun Tridharma Fakultas Pertanian Universitas Gadjah Mada dengan ketinggian tempat 110 m dpl. Faktor pertama adalah kultivar kedelai terdiri atas 18 kultivar dan faktor kedua adalah interval penyiraman terdiri atas 4 taraf yaitu penyiraman 1 hari, 2 hari, 4 hari dan 8 hari sekali sampai kapasitas lapangan. Pengamatan kebutuhan air dilakukan mulai umur 15 hari sampai 56 hari setelah tanam dan eﬁsiensi penggunaan air dilakukan pada umur 56 hari setelah tanam. Perhitungan indeks cekaman dan indeks sensitivitas cekaman dilakukan pada umur 84 hari setelah tanam. Hasil penelitian menunjukkan bahwa kultivar Grobogan dan Galunggung tahan terhadap cekaman kekeringan dengan kebutuhan air antara 4,87 sampai 4,98 mm dan eﬁsiensi penggunaan air 5,16gram/mm. Kultivar Burangrang, Kaba, Argomulyo, Panderman, Ijen, Baluran, Petek, dan Malabar merupakan kultivar yang agak tahan terhadap cekaman kekeringan dengan kebutuhan air antara 3,98 sampai 6,14 mm dan eﬁsiensi penggunaan air antara 3,69 sampai 5,51 gram/mm. Kultivar Sibayak, Tanggamus, Anjasmoro, Wilis, Garut, Gepak Kuning, Sinabung, dan Seulawah merupakan kultivar yang tidak tahan terhadap cekaman kekeringan dengan kebutuhan air antara 5,37 sampai 5,95 mm dan eﬁsiensi penggunaan air antara 3,49 sampai 5,60 gram/mm.

Pengaruh Penambahan Laurat dan Glisin terhadap Nilai Warna dan Kadar Sitrinin Angkak Susana Ristiarini; Muhammad Nur Cahyanto; Jaka Widada; Endang Sutriswati Rahayu
agriTECH Vol 38, No 3 (2018)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Angkak, commonly used for food colorant and flavor enhancers in oriental cuisine, is the result of fermentation by Monascus purpureus on steamed rice. In addition to producing pigments Monascus purpureus, Angkak also produces mycotoxins, citrinin, which is hepato-nephrotoxic. Biosynthesis of pigment and citrinin is following a polyketide synthase pathway and then subdivides to form pigment or citrinin. Fatty acids and amino acids are known to be the precursors of red pigment formers in their biosynthetic pathways. The purpose of this research was to know the effect of addition of lauric fatty acid and amino acid glycine on steamed rice substrate to the color characteristic and citrinin level by M. purpureus JK9A. The amount of fatty acid and glycine was respectively 0.5% and 1% (w/w). Fermentation was carried out for 14 days and every two days the solids content of fermented products, pH, number of cells, colors, pigments dissolved in water were measured. The level of citrinin was tested at the end of the fermentation period (14th day). There was no significant difference between treatments for the solids content of about 23 ̶ 29% and the number of cells 6.32 ̶ 6.56 logCFU/g. While the pH value, color and water-soluble pigments were significantly different between treatment and control. The ˚hue values of glycine and combination of lauric-glycine were 16.11 and 15.33, respectively, lower than controls (22.76). The highest A500nm/A400nm ratio was in the combination treatment of lauric-glycine and the lowest levels of citrinin also in the treatment of lauric-glycine combination. This study noticed that the addition of lauric or glycine and its combination in rice media for Monascus purpureus JK9A fermentation proved to increase the biosynthesis of red pigment (46.34%) and decrease citrinin level up to 49.97%.

Co-Authors , Tamad . Tohari A. Alimuddin Achmad Dinoto Adi Laksono Ahmad Romdhon Akira Hosoyama Akira Hosoyama Ali Ikhwan Alim Isnansetyo Amekan, Yumechris Angga Prasetya Anna Safarrida Anna Safarrida, Anna Annisa Yusuf, Wahida Ariani Hatmanti Arif Muliawan Arifah Khusnuryani Arifah Khusnuryani Ariyanti, Nur Fitriana Asrul Asrul Asrul Asrul Atsushi Yamazoe Atsushi Yamazoe Aziz Purwantoro Azwar Maas Bambang Hadisutrisno Bambang Hadisutrisno Bambang Hadisutrisno Bambang HADISUTRISNO Bambang Hariwiyanto Bambang Hariwiyanto Bambang Hendro Sunarminto Bambang Hendro sunarminto Bostang Radjagukguk Camelia Herdini Christanti Sumardiyono Denny Irawati Dewi Seswita Zilda DEWI SESWITA ZILDA Dhani Suryawan Dhani Suryawan, Dhani Diani Mentari Diannastiti, Fani Aulia Didik Indradewa Didik Indradewa Didik Indradewa Dinar Mindrati Fardhani Dionysius Andang Arif Wibawa Dionysius Andang Arif Wibawa, Dionysius Andang Dody Kastono Dolly Iriani Damarjaya Dolly Iriani Damarjaya, Dolly Iriani Donny Widianto Donny Widianto Donny Widianto Donny Widianto Dyah Weny Respatie Edy Meiyanto Eka Tarwaca Susila Putra Eko Hanudin Eko Hanudin EKO IRIANTO Ema Damayanti Ema Damayanti Endang Semiarti Endang Sutriswati Rahayu Eni Harmayani ENI HARMAYANI Erni Martani Erni Martani Eti Nurwening Sholikhah Fatturahman Ridwan, Nur Febriansah , Rifki Galang Indra Jaya Ganis Lukmandaru Gintung Patantis Gintung Patantis GINTUNG PATANTIS Hadi, Ismanurrahman Hari Eko Irianto Hartono Hartono H, Hartono Hera Nirwati Hideaki Nojiri Hideaki Nojiri Indun Dewi Puspita IRFAN D. PRIJAMBADA Irfan Dwidya Prijambada Irwan Suluk Padang Jauhari Syamsiyah Joko Sulistyo Kana Ninomiya Keishi Senoo Keishi Senoo, Keishi Khoirun Nisa Lucia Dhiantika Witasari Lucia Dhiantika Witasari, Lucia Dhiantika M. Mustofa Maria Gratias Mariyatun Mariyatun, Mariyatun Masagus Muhammad Prima Putra Masaya Nishiyama Masaya Nishiyama, Masaya Ma’as, Azwar Melki Melki Mirtani Naima Mohamad Aji Ikhrami Muhammad Dylan Lawrie Muhammad Nur Cahyanto Muhammad Saifur Rohman Mujiyo Mujiyo Mukhlissul Faatih Mukhlissul Faatih1, Mukhlissul Mulyadi Mulyadi Mulyadi Mulyadi Mulyono Mulyono Murwantoko . Mustofa M, Mustofa Mustofa Mustofa Mustofa Mustofa N. Ngadiman Naima, Mirtani Nastiti Wijayanti Nastiti Wijayanti Nastiti Wijayanti Ngadiman Ngadiman . Ngadiman ., Ngadiman Ngadiman N, Ngadiman Noviyanto, Amir Nunuk Supriyatno Nur Edy Nur Prihatiningsih Nurfiani, Sri Ocky Karna Radjasa Oedjijono Oedjijono, Oedjijono Pintaka Kusumaningtyas Prijambada, Irfan Dwidja PUSPITA LISDIYANTI Putra, Sukmana Siswandana Putu Sudira R. Riyanti Rahayu, Endang Sutriswati Reni Nurjasmi Reni Nurjasmi, Reni Riska Wulansari Ristiarini, Susana Riyanti Riyanti Rusdi Evizal Saipul Abbas Sarto SATRIYAS ILYAS Shigeto Otsuka Shigeto Otsuka, Shigeto Shinta Hartanto Shogo Matsumoto Sigit Sunarta, Sigit SITI KABIRUN Siti Kabirun Siti Kabirun Siti Subandiyah Sofia Mubarika Haryana Sri Hastuti Sri Nopitasari Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Suryanti Sri Suryanti Sri Wedhastri Stalis Norma Ethica Subagus Wahyuono Sudadi Sudadi Suhartiningsih Dwi Nurcahyanti Sumarno Sumarno Sumarno Sumarno Suryanti Suryanti Suryanti Suryanti Susila Herlambang TOHARI TOHARI Tohari Tohari Tomy Listyanto Tomy Listyanto Tri Harjaka Tri Joko Raharjo Tri Rini Nuringtyas Tri Wibawa Tri Wibawa Triwibowo Yuwono Triwidodo Arwiyanto Wangi, Dyah Sekar A P Widya Asmara WIDYA ASMARA Wulansari, Riska Yani Lestari Nuraini Yani Lestari Nuraini, Yani Lestari Yasushi Yoshioka Yenny Sariasih Yose Rizal Yuli Setiawati Yuliana Prahastiwi Yuliana Yuliana Prahastiwi, Yuliana Yusro Nuri Fawzya Yusro Nuri Fawzya YUSRO NURI FAWZYA Yuuki Asano Yuyun Farida Yuyun Farida, Yuyun Zilda, Dewi Zeswita

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