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All Journal Jurnal Teknik Industri Agrotekno Jurnal BETA (Biosistem dan Teknik Pertanian) Jurnal Keteknikan Pertanian Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Rona Teknik Pertanian Jurnal Ilmiah Teknologi Pertanian Agrotechno
Ida Bagus Putu Gunadnya
Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung Bali
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering

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Journal : Agrotekno

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KOEFISIEN PINDAH PANAS KESELURUHAN ALAT PENUKAR PANAS DALAM PENDINGINAN NOKTURNAL Gunadnya, I.B.P.; Abdullah, K.; Tambunan, A.H.; Purwanto, Y.A.; Oktaufik, M.A.M.
Agrotekno Vol. 14, No.2 Agustus 2008
Publisher : Universitas Udayana

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Abstract

A series of field experiments have been conducted to estimate values of thermal parameters of a heat exchanger, such as overall heat transfer coefficient (U), number of transfer units (NTU), and effectiveness (?), in a nocturnal cooling system. Accumulated experimental data showed that these parameters are proportional to the logarithmic relation to mass flow rate of water flowing into the heat exchanger. Empirical correlation developed for this purpose indicated that correlation coefficient of U was 0.76. the correlation function developed for cross-flow is applicable to predict outlet air temperature with an average error of 0.10C.
PENENTUAN DAERAH “MODIFIED ATMOSPHERE” (MA) UNTUK PENYIMPANAN BUAH SALAK PONDOH SEGAR Gunadnya, Ida Bagus Putu
Agrotekno Vol. 15, No. 2 Agustus 2009
Publisher : Universitas Udayana

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Abstract

MA storage combined with cold storage has been wellknown for its advantages in storing fresh produces. So, inthis research an attempt was carried out to determine the MAof fresh Pondoh snake fruit. Two levels of low O2 concentrationswhich combined with four levels of high CO2 wereapplied to find out the proper MA storage for the fresh fruitat temperature of 10 and 15oC. A storage of the fruit atnormal atmosphere was also made as a control. Qualitymeasurements were done on hardness and colour of the fruitpulp.Experiments showed that only four O2 – CO2 combinationsthat gave better fruit responses, when the fruit wasstored for 18 days at 10 and 15oC. So, it was suggested thatthe MA storage of fresh Pondoh snake fruit was at 4 ± 2% O2with 14 ± 4 CO2 for 18 days storage at 10 and 15°C.
PENGARUH ETHANOL TERHADAP KESEPATAN BUAH SALAK Supartha Utama, I Made; P. Gunadnya, Ida Bagus; Wrasiati, Luh P.
Agrotekno Vol. 11, No. 2 Januari 2005
Publisher : Universitas Udayana

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Abstract

Salak (Salaca edulis Reinw.) is one of Indonesia’s indigenous tropical fruits,which has given a priority being developed as one of an export horticulturalcommodity. One of problems which causes in difficulty of marketing of this fruit isthat it contains high concentration of tannin of which gives an astringent taste of thefruit. Therefore, this research has tried to reduce this taste by applying ethanolsolution and vapor to the intact fruits.The result indicated that by applying ethanol both as solution and vapour hassignificantly reduced the concentration of tannin of the salak fruit. Other beneficialeffects of ethanol were to increase the total soluble solid and reduce the acidity of thefleshy part of the fruit. All these effects could bring a new market development forsalak fruit. Further research, however, should be performed to identify the minimumconcentration of ethanol in the fleshy of the fruit to give significant reduction of thetannin and the threshold concentration of ethanol to give a taste of ethanol in thefleshy fruit.
Co-Authors A.H. Tambunan Agnesia Arista Wijaya AK Ali Muhamad Prabowo Anggi Setiawan Armansyah Halomoan Tambunan Aviantara, I Gusti Ngurah Apriadi Bagus Made Brahmanda Diputra Bob Evan Tampubolon Budana, I Putu Yosan Dewa Ayu Tari Dewa Bagus Putu Prabha Diptaya Dian Dwi Cahyo Pangestu Gede Arda I Gede Berliyantha Tikawa I Gusti Ngurah Apriadi Aviantara I Gusti Putu Eka Permana I Ketut Agus Sandi Andika I Ketut Suter I Komang Gede Habi Wijaya I Made Anom S. Wiajaya I Made Anom Sutrisna Wijaya I Made Prasetia Candra Andika I MADE SUPARTHA UTAMA I Made Surya Adnyana Putra I Made Yogi Supardika I Nyoman Sucipta I Putu Dharma Putra Ritzada I Putu Gede Budisanjaya I Putu Mas Pradnyana Wibawa I Wayan Adi Saputra I Wayan Aris Santika Putra I Wayan Sugiana I Wayan Tika I Wayan Widia I Wayan Widia I. A. G. Bintang Madrini Ice Hera Widia Ida Ayu Agung Putri Trisiana Dewi Ida Ayu Mas Oceanic Ida Ayu Rina Ida Ayu Rina Pratiwi Pratiwi Ida Ayu Rina Pratiwi Pudja Immanuel Damanik Ivan Alexander Sormin K. Abdullah Kadek Dyah Swasni Prambandita Kadek Mila Adiani Kamaruddin Abdullah Kevin Imanto K. Resman Komang Agus Suara Kori Ardy Rahayu Lestari, Kadek Irma Dwi Linda Puji Ayu Lestari Luh Putu Wrasiati M. Sudiana Mahendra M.A.M. Oktaufik Made S Utama Merisa - Aritonang Mubarok, Rizky Muhammad Azizi Rido Setiawan Ni Luh Yulianti Ni Luh Yulianti Ni Made Darmayanti Ni Made Juli Adiasih Ni Nyoman Ayu Tirta Diani Ni Putu Budisetiari Ni Putu Intan Oktavia Fitriani Ni Putu Murtini Pande Ketut Diah Kencana Putra, I Nyoman Galih Oki Putu Ayu Purnamayanti Putu Darmayanti Putu Wahyu Nirmala Sari Ramendra Wiro Ginting Rina Pratiwi Pudja I. A Riski Nirmala Sidabutar roy zulkarnaen Sihombing, Alwin Siti Muizzun Nisak Stefani Sitanggang Sumiyati Sumiyati Utama, Made S Wayan Tika Y.A. Purwanto Yesinta Kristin Tamba Yohanes Setiyo