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Journal : AGRITEKNO, Jurnal Teknologi Pertanian

PENGARUH PEMBERIAN KALSIUM KLORIDA DAN PENGHAMPAAN UDARA TERHADAP MUTU BUAH TOMAT Rachel Breemer; Priscillia Picauly; Febby J. Polnaya
AGRITEKNO: Jurnal Teknologi Pertanian Vol 4 No 2 (2015): AGRITEKNO, Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

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Abstract

This study aims to determine the level of concentration of calcium chloride and vacuum air on the quality of tomatoes. Post-harvest handling of tomatoes was done by giving treatment concentration of calcium chloride solution different (0, 6, 9, 12%) and determined the best treatment then treated with vacuum air (430, 540, 650, and 760 mm Hg). Observations were made of the color, hardness and weight loss. The results showed that the use of calcium chloride with vacuum air significant effect on the value of color, hardness and changes in fruit weight. The use of calcium chloride with a concentration of 12% is the best, because it can maintain the color values of 6.02%, 7.76% hardness, and can press the fruit weight loss of 1.04%. The level of vacuum air 430 mm Hg can maintain the color values of 6.79 and can reduce fruit weight loss of 2.95%.
Pengaruh Konsentrasi Tepung Beras Ketan Terhadap Mutu Dodol Pepaya Dorina Kelmaskosu; Rachel Breemer; Febby J Polnaya
AGRITEKNO: Jurnal Teknologi Pertanian Vol 4 No 1 (2015): AGRITEKNO, Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

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Abstract

The objective of this research was to determine the best level of concentration of waxy rice flour on the quality of “dodol” papaya. A completely randomized experimental design having of five levels of treatment, namely: control, waxy rice concentration of 0, 10, 20, 30, and 40% were applied in this research. Variables measured on the product including the chemical composition (moisture, ash, vitamin C, and reducing sugar content) and the products were also subjected to organoleptic test for springiness, taste, color, odor, and preference level. The results showed that the different waxy rice flour concentrations had significant effects over variables measured. The waxy rice flour with the concentrations of 10% produce the “dodol” papaya with the best quality.
KARAKTERISTIK SIFAT-SIFAT KIMIA DAN ORGANOLEPTIK KUE KERING BERBAHAN DASAR PATI SAGU, UBI KAYU, UBI JALAR DAN KELADI Febby J Polnaya; Rachel Breemer
AGRITEKNO: Jurnal Teknologi Pertanian Vol 5 No 1 (2016): AGRITEKNO, Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2016.5.1.1

Abstract

The purpose of this research was to characterize chemical and sensory properties (color, texture, taste and liking) of starch-based sago, cassava, sweet potato and cocoyam cookies. Analysis of cookies include moisture content, ash, fat, protein, crude fiber and sensory analysis including color, texture, taste and likeness). The proximate composition indicated that the water content of cookies varied between 1.48 to 2.05%, ash content of 0.65 to 0.72%, 19.23 to 21.76% of fat, crude fiber from 0.41 to 0.71% and 1.33 to 2.42% of total protein. Based on organoleptic tests, the color of cookies was yellow to brownish-yellow, with crispy texture, the taste was sweet and were mostly preferred.
Pengaruh Edible Coating Jenis Pati Terhadap Mutu Buah Tomat Selama Penyimpanan Gilian Tetelepta; Priscillia Picauly; Febby J. Polnaya; Rachel Breemer; Gelora H Augustyn
AGRITEKNO: Jurnal Teknologi Pertanian Vol 8 No 1 (2019): AGRITEKNO, Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2019.8.1.29

Abstract

This research was aimed to assess the effects of starch type as edible coatings on tomato fruit during storage. A completely randomized experimental design with two factor of treatment. i.e, starch type (no coating, tuni sago starch, cassava starch, and Fe’i banana starch) and storage time (5, 10, and 15 days). Variables observed including hardness, weight loss, vitamin C, total acidity and lycopene content. Results showed that stored for 15 days without coating resulted in significant decrease in hardness, vitamin C content, total acidity, and increase in weight loss and lycopene content. Whereas tomato fruits coated with tuni sago, cassava and tongka langit banana starches was found to be more effective in maintaining the quality of the tomatoes during storage. Keywords: cassava starch, edible coating, Fe’i banana starch, tuni sago starch, tomato ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh jenis pati untuk edible coating buah tomat selama penyimpanan. Rancangan yang digunakan dalam penelitian ini adalah rancangan acak lengkap faktorial, terdiri dari dua faktor yaitu jenis pati (tanpa coating, pati sagu tuni, pati ubi kayu, pati pisang tongka langit) dan lama penyimpanan (5, 10, dan 15 hari). Variabel yang diamati adalah kekerasan, susut bobot, vitamin C, total asam dan likopen. Hasil penelitian menunjukkan bahwa buah tomat yang disimpan hingga hari ke-15 tanpa coating secara signifikan mengalami penurunan kekerasan, vitamin C, total asam dan mengalami kenaikan susut bobot dan likopen. Sedangkan buah tomat yang di-coating dengan pati sagu tuni, ubi kayu, pisang tongka langit efektif dalam mempertahankan mutu tomat selama penyimpanan. Kata kunci: edible coating, pati sagu tuni, pati ubi kayu, pati pisang tongka langit, tomat
Pengaruh Penambahan Sodium Tripolyphosphate Terhadap Karakteristik Tepung Buru Hotong (Setaria italica L Beauv.) Fosfat Breemer, Rachel; Sigmarlatu, Trisonda; Polnaya, Febby J
AGRITEKNO: Jurnal Teknologi Pertanian Vol 9 No 2 (2020): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2020.9.2.88

Abstract

This study aimed to characterize phosphate-modified buru hotong flour modified used sodium tripolyphosphate (STPP). Buru hotong flour was phosphorylated at 45°C with STPP concentration of 10, 15.20, and 25% for 30 minutes. Observations were conducted on the physicochemical properties of native buru hotong flour and its derivatives, including phosphorus levels, degree of substitution (DS), moisture content, ash content, swelling power, solubility, and amylose content. The results showed that the phosphorus content of buru hotong phosphate flour increased (0.023-0.077%) with the DS ranged between 0.001-0.004. Phosphorus and DS levels indicated the substitution of phosphate groups. Substituted phosphate groups increased the moisture content (6.92-10.23%), ash content (0.37-0.84%), swelling power (10.16-15.63%), solubility (29.22-46.2%), and amylose content (26.29-29.37%) of buru hotong phosphate flour compared with native flour. The characteristics of phosphate hotong flour were different from their native. The higher the concentration of STPP, all of the variables were increases. Keywords: sodium tripolyphosphate, buru hotong phosphate flour, physicochemical properties ABSTRAK Penelitian ini bertujuan untuk mengkarakterisasi tepung buru hotong fosfat yang dimodifikasi dengan menggunakan sodium tripolyphosphate (STPP). Tepung buru hotong difosforilasi pada suhu 45oC dengan konsentrasi STPP 10, 15, 20 dan 25% selama 30 menit. Pengamatan dilakukan terhadap sifat fisiko-kimia tepung buru hotong alami dan derivatnya, meliputi kadar fosfor, derajat substitusi (DS), kadar air, kadar abu, daya gelembung, daya larut, dan kadar amilosa. Hasil penelitian menunjukkan bahwa kadar fosfor tepung buru hotong fosfat meningkat (0,023-0,077%) dengan kisaran DS antara 0,001-0,004. Kadar fosfor dan DS menunjukkan terjadinya substitusi gugus fosfat. Tersubstitusinya gugus fosfat menyebabkan meningkatnya kadar air (6,92-10,23%), kadar abu (0,37-0,84%), daya gelembung (10,16-15,63%), daya larut (29,22-46,2%) dan kadar amilosa (26,29-29,37%) tepung buru hotong fosfat dibandingkan dengan tepung buru hotong alami. Karakteristik tepung buru hotong fosfat berbeda dengan tepung alaminya. Semakin tinggi konsentrasi STPP maka setiap peubah yang dialami mengalami peningkatan. Kata kunci: Sodium tripolyphosphate, tepung buru hotong fosfat, sifat-sifat fisiko-kimia
Karakteristik Kimia Tepung Umbi Talas (Colocasia esculenta) Kultivar Tanimbar dengan Lama Fermentasi Siletty, Lambertina; Polnaya, Febby J; Moniharapon, Erynola
AGRITEKNO: Jurnal Teknologi Pertanian Vol 11 No 1 (2022): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2022.11.1.48

Abstract

Tanimbar taro flour is a processed product from tubers originating from Tanimbar, West Southeast Maluku, and is known as “tarro pici” and has not been widely researched regarding the fermentation treatment. Fermentation was carried out to change the properties of Tanimbar taro flour. This study aimed to characterize the chemical properties of taro flour fermented using 0.5% yeast fermipan. Fermentation was carried out for 0 hours (control), 24, 48, and 72 hours in a closed container. The analysis carried out includes water content, ash content, the fat content of the Soxhlet method, Kjeldahl micro protein content, fiber content, and carbohydrate content (by diff.). A non-factorial completely randomized design was used in this study and each treatment was repeated three times. The results showed that the water content, ash content, protein content, fat content, carbohydrate content (by diff.), and fiber content had a very significant effect on tanimbar taro flour. The best treatment was the 72-hour fermentation treatment to produce tanimbar taro flour with a moisture content of 8.61%, ash content of 0.50%, protein content of 5.12%, fat content of 1.02%, carbohydrate content of 84.76% and fiber content of 2.29%. Keywords: Fermentation; modification flour; Tanimbar taro bulb ABSTRAK Tepung umbi talas Tanimbar merupakan hasil olahan dari umbi yang berasal Tanimbar, Maluku Tenggara Barat dan dikenal dengan nama “kaladi pici” dan belum banyak diteliti terkait dengan perlakuan fermentasi. Fermentasi dilakukan untuk mengubah sifat-sifat tepung talas Tanimbar. Penelitian ini bertujuan untuk untuk mengkarakteristik sifat-sifat kimia tepung talas kultivas Tanimbar yang difermentasi menggunakan ragi fermipan sebanyak 0,5%. Fermentasi dilakukan selama 0 jam (kontrol), 24, 48, dan 72 jam dalam wadah yang tertutup. Analisis yang dilakukan meliputi kadar air, kadar abu, kadar lemak metode Soxhlet, kadar protein mikro Kjedahl, kadar serat, kadar karbohidrat (by diff.). Rancangan acak lengkap non-faktorial digunakan dalam penelitian ini dan setiap perlakuan diulang tiga kali. Lama fermantasi berpengaruh sangat nyata terhadap setiap parameter tepung talas tanimbar yang dianalisis. Perlakuan terbaik adalah perlakuan fermentasi 72 jam menghasilkan tepung talas tanimbar dengan kadar air 8,61%, kadar abu 0,50%, kadar protein 5,12%, kadar lemak 1,02%, kadar karbohidrat 84,76% dan kadar serat 2,29%. Kata kunci: Fermentasi; talas Tanimbar; tepung modifikasi
Characteristics of Edible Film Made from Bitter Cassava Starch with Glycerol Rumyaan, Maria; Polnaya, Febby J; Tuhumury, Helen C D
AGRITEKNO: Jurnal Teknologi Pertanian Vol 11 No 2 (2022): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2022.11.2.102

Abstract

The purpose of this study was to see how different glycerol concentrations affected the physical, mechanical, and barrier properties of an edible tapioca starch film. This study explored glycerol concentration using a completely randomized experimental design with four treatment levels, particularly regarding 10, 15, 20, and 25% (w/w). The tensile strength, elongation, solubility, and water vapor transmission rate of the films were all measured. Tensile strength has been 7.71 to 15.94 MPa, elongation was 13.33 to 20.00%, solubility was 15.81 to 24.81%, and water vapour transmission rate was 39.72 to 70.65 g/m2.h. Glycerol increased tensile strength whereas the decreasing elongation, solubility, and water vapour transmission rate.