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All Journal International Journal of Renewable Energy Development Jurnal Ilmu Lingkungan Jurnal Keteknikan Pertanian Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) agriTECH Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Dinasti International Journal of Education Management and Social Science ASEAN Journal of Chemical Engineering Jurnal Pusat Inovasi Masyarakat International Journal of Renewable Energy Development International Journal of Oil Palm

Edy Hartulistiyoso

Departemen Teknik Mesin Dan Biosistem, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Jl. Raya Darmaga Kampus IPB Darmaga Bogor, Jawa Barat 16680

Author-ID : 277156

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Social Sciences

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Aplikasi Microwave untuk Disinfestasi Tribolium castaneum (Herbst.) serta Pengaruhnya terhadap Warna dan Karakteristik Amilografi Terigu Nur Pratiwi Rasyid; Edy Hartulistiyoso; Dedi Fardiaz
agriTECH Vol 37, No 2 (2017)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

This study aimed to determine the amount of microwave energy used for the disinfestation of T. castaneum and to observe its effect on discoloration and amilographic characteristic of treated wheat flour. Damages due to T. castaneum attack during storage caused physical and chemical changes in the wheat flour. The physical damage from this attack wasthe color change of the wheat flour, whereas chemical damage was caused by lipase enzyme activity and benzokuinon derived from the secretion of T. castaneum. The study was conducted on the wheat flour that was unfumigated in it smilling stage. The contamination of the wheat flour was artificially made by giving cultured T. castaneum, which were consisted of 10 males and 10 females, into 50 g as well as 100 g of wheat flour. After 42 days of storage time, the study showed that the mortality rate of untreated samples was 0 % both for 50 g and 100 g samples. The moisture showed an increase, while color-brightness level and viscosity peak were decreased. All of samples that were treated by 23.76 kJ, 24.00 kJ, 31.68 kJ and 36.00 kJ of microwave energy indicated 100% mortality of T. castaneum, whereas the color brightness, the amilographic peak, and moisture were decreased both on the mass of 50 g and 100 g after H+42 storage time. ABSTRAKAplikasi microwave telah dipelajari untuk disinfestasi Tribolium castaneum (Herbst.) dan pengaruhnya terhadap karakteristik warna dan amilografi tepung terigu. Kerusakan karena serangan T. castaneum selama penyimpanan menyebabkan terjadinya perubahan fisik dan kimiawi tepung. Kerusakan fisik berupa terjadinya perubahan warna tepung, sedangkan kerusakan kimiawi karena adanya aktifitas enzim lipase dan benzokuinon yang berasal dari hasil sekresi T. castaneum. Penelitian dilakukan dengan menggunakan tepung yang tidak di fumigasi pada tahap milling. Kontaminasi pun dilakukan dengan memberikan biakan T. castaneum masing-masing 10 jantan dan 10 betina ke dalam 50 g dan 100 g sampel tepung. Hasil penelitian menunjukkan bahwa tingkat mortalitas pada sampel yang tidak diberi aplikasi microwave setelah penyimpanan 42 hari adalah 0 % baik untuk sampel 50 g dan 100 g. Kadar air meningkat, sedangkan tingkat kecerahan warna, puncak viskositas menurun. Sampel yang diberi perlakuan energi microwave 23,76 kJ, 24,00 kJ, 31,68 kJ dan 36,00 kJ menunjukkan mortalitas 100 % dari T. castaneum, sedangkan kecerahan warna, puncak viskositas, kadar air, menurun setelah penyimpanan 42 hari baik pada berat sampel 50 g dan 100 g.

Pengaruh Kadar Air terhadap Beberapa Sifat Fisik Biji Lada Putih Andi Muhammad Akram Mukhlis; Edy Hartulistiyoso; Yohanes Aris Purwanto
agriTECH Vol 37, No 1 (2017)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The physical properties of seed are required in designing an apparatus for handling, separation, drying, storage, and processing. The physical properties of white pepper seeds were determined as a function of moisture content in the range of 15,40 - 64,80 % dry basis (d.b.). The average height, length and width at a moisture content condition of 15,40 % (d.b.) were 4,11 ± 0,27 mm; 4,35 ± 0,34 mm and 4,35 ± 0,35 mm, respectively. In the range of moisture content 15,40 - 64,80 % (d.b.), the results of this study showed an increase linearly of the third axial dimension, the average diameter, the roundness from 0,969 to 0,977, the volume from 39,50 to 67,34 mm3, the surface area from 55,87 to 79,92mm2 and the thousand seed mass from 52,47 to 75,63 g. Bulk density and true density has a polynomial correlation with changes in moisture content.The porosity decreased from 45,01 % to 44,88 % with an increase in the moisture content range of 15,40 - 64,80 % (d.b.). ABSTRAKSifat fisik biji-bijian diperlukan dalam merancang suatu peralatan untuk penanganan, pemisahan, pengeringan, penyimpanan dan pengolahannya. Sifat fisik biji lada putih ditentukan sebagai fungsi kadar air pada rentang 15,40 - 64,80 % basis kering (b.k.). Tinggi, panjang dan lebar rata-rata pada kondisi kadar air 15,40 % (b.k.) adalah 4,11 ± 0,27 mm; 4,35 ± 0,34 mm dan 4,35 ± 0,35 mm berturut-turut. Pada rentang kadar air 15,40 - 64,80 % b.k., hasil penelitian ini menunjukkan peningkatan secara linear pada ketiga dimensi aksial, diameter rata-rata, kebulatan dari 0,969 hingga 0,977, volume dari 39,50 hingga 67,34 mm3, luas permukaan dari 55,87 hingga 79,92 mm2 dan massa seribu biji dari 52,47 hingga 75,63 g. Bulk density dan true density memiliki hubungan polinomial dengan perubahan kadar air biji. Porositas menurun dari 45,01 % hingga 44,88 % dengan peningkatan kadar air pada rentang 15,40 - 64,80 % (b.k.).

Co-Authors . Harmen Addiena Syahvina Nasution Adicha Rahmawati Al Azhari, Lalu Muh Fathul Aziz Ali Parjito Anas Miftah Fauzi Andi Muhammad Akram Mukhlis Aris Purwanto Armansyah H. Tambunan Armansyah Halomoan Tambunan Armansyah Halomoan Tambunan Cahyadi, Firdaus Chandra Gupta Dadan Kusdiana Dadan Kusdiana Damanik, Annisa Purnamasari Dedi Fardiaz Dziyad Dzulfansyah Eka Priyana Elpodesy Marlisa Erlanda Augupta Pane Fajri, Ihsanul Fauzy, Anas Miftah Hablinur Alkindi Hendri Syah Henry Munandar Manik I Dewa Made Subrata Inge Scorpi Tulliza Inge Scorpi Tulliza Irawan Senatosa Irham Faza Lalu Muh Fathul Aziz Al Azhari Lamhot Parulian Manalu Lilis Sucahyo M Ridwan Dwi Astanto Mawardi, Haris Muhamad Yulianto Muhamad Yulianto Muhamad Yulianto Nelwan, Leopold Oscar Nur Pratiwi Rasyid RAHAYU WIDYASTUTI Resmianty, Teti Rokhani Hasbullah Salundik Setya Permana Sutisna Setyo Pertiwi Slamet Widodo Soeryo Adiwibowo Sri Endah Agustina Sri Mulyani Suhengki, Suhengki Sumantri, Willi Supriyanto Supriyanto Sutoyo, Edi Teti Resmianty Yahdi, M. Arief

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