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Lady Lengkey
Jurusan Teknologi Pertanian, Fakultas Pertanian, Universitas Sam Ratulangi, Manado Jalan Kampus Kleak, Manado, Sulawesi Utara, 95115.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics

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Journal : Jurnal Teknologi Pertanian (Agricultural Technology Journal)

 1 
REKAYASA MESIN PENGUPAS KULIT BUAH KOPI JENIS ROBUSTA MODEL TEP-JLL 2015 DI KABUPATEN TANA TORAJA Langi, Jois Limbong; Ludong, Daniel P. M.; Lengkey, Lady C. Ch. E.
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 11, No 1 (2020): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.11.1.2020.29983

Abstract

ABSTRACT The objective of this research was to design a pulper machine model TEP-JLL 2015 for fresh coffee robusta used in rural areas of Tana Toraja district. The machine was designed based on the analysis of physical characteristics of Robusta Tana Toraja coffee and literature study. The analysis result of physical characteristics showed the average length, thickness width was 12.494 mm, 12.802 mm, 10.687 mm, respectively, and the bulk density was 1,115 kg/m3. The theoretical hopper capacity of this machine was 3.7687 kg. Assuming the cylinder speed was 111.594 rpm with an effective distance setting system or flawed setting of 1.2 cm, the theoretical capacity of this pulper machine was 380.62 kg/hour. Keywords: fresh Robusta coffee fruit, pulper machine
ANALISIS KUALITAS SELADA (Lactuca sativa L.) YANG DITANAM PADA DUA MEDIA SELAMA PENYIMPANAN DINGIN Rantung, Livia E.; Lengkey, Lady C. Ch. E.; Wenur, Frans
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 11, No 1 (2020): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.11.1.2020.29985

Abstract

ABSTRACTThe objective of this study was to investigate the quality (weight, color, stem firmness and total dissolved solids) of hydroponic and soil culture lettuce (Lactuca sativa L.).  This study used a non factorial completely randomized design with two treatments (type of planting media) as follows hydroponic lettuce and soil culture lettuce. This research conducted 9 replications. Data were analyze with ANOVA to determine whether there is a difference in the quality of lettuce after storage at cold temperatures. Lettuce is packed and placed at cold storage of 50C. The change in weight, color, stem firmness and total dissolved solids  were observed every 3 days during storage period. The result of this study show that hydroponic lettuce and soil lettuce gave different responses during cold storage. After 15 days of storage, soil culture lettuce has better quality than hydroponic lettuce in terms of maintaning the weight and total dissolved solids. While, in maintaning the color and firmness of the stem, hydroponic lettuce has better quality. Keywords: Lettuce, planting media, cold storage
KAJIAN MUTU LABU SIAM (Sechium edule) TEROLAH MINIMAL YANG DIKEMAS VAKUM SELAMA PENYIMPANAN Pinem, Esron H.; Longdong, Ireine A.; Lengkey, Lady C. Ch. E.
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 11, No 2 (2020): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.11.2.2020.31488

Abstract

AbstractThis study aims to analyze the deterioration of the quality of the chayote during storage using several packaging methods. The research method was carried out experimentally and the data were processed descriptively which consisted of three treatments, namely: vacuum packed, without vacuum, and open. Each treatment was carried out 3 (three) times with each weight of 250 grams. Research shows that minimally processed chayote which is vacuum packed and stored at a temperature range of 5oC - 9.6oC can last for 12 days, experiencing a weight loss of 0.90%. The color changed from Faded Yellow to Gray Yellow. The texture becomes soft with a hardness value of 8.80 N. The water content changes from 91.98% to 94.70%.In conclusion, the storage life of vacuum packed minimally processed chayote could be prolonged up to 12 days at 5oC – 9,6oC, grey-yellow in color, texture softened, and weight loss as much as 0.90%. Keywords: Chayote, minimally processed, vacuum packed.
ANALISIS MUTU DAN EKONOMI PENERAPAN PENGEMASAN VAKUM BAWANG DAUN POTONGAN (Allium fistulosum L.) SELAMA PENYIMPANAN Mikael, Florensi Wahyuni; Molenaar, Robert; Lengkey, Lady C. Ch. E.
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 11, No 2 (2020): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.11.2.2020.31487

Abstract

AbstractThis study aimed to analyze leeks packaging and without packaging during storage, and to analyze economical packaging and knowing the number of breakeven points obtained. This study uses an experimental method, and descriptive analysis of data consisting of 2 treatments and 3 replications, namely scallions which are vacuum packed, and leeks without packaging that are stored in a refrigerator with a temperature of 5-10˚C.From the results of research on quality analysis of changes in weight, color and texture showed that the vacuum packaged onions at a storage temperature of 5˚C – 10˚C gave the best results over a 14-day shelf life compared to unpacked leeks which only lasted for a shelf life of 6 days. Weight reduction occurred in the treatment without packaging by 44%. The total fixed cost is Rp.219,625 /Year, the total variable cost is Rp.5,519 per package, with a yearly production of 24,300 packs /Year, to obtain the selling price of vacuum packaging leeks of Rp.6,080 per package, and the break-even analysis results in get is 392 packaging /Year.Keywords : Leeks, Vacuum Packaging, Storage Time
ANALISIS MUTU BIJI PALA (Myristica fragrans H.) PADA BERBAGAI TINGKAT KEMATANGAN BERBEDA SETELAH PENJEMURAN Awuy, Gebby; Longdong, Ireine A.; Lengkey, Lady C. Ch. E.
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 11, No 2 (2020): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.v11i2.37787

Abstract

AbstractThe objective of this study is to investigate the quality of nutmeg with different degrees of maturity in sun drying based on the national quality standards in Indonesia, namely Calibrated Nutmeg (CN), ABCD (Average), shrivel, and BWP (Broken Wormy Punky). The result of this study showed that older maturity degree of nutmeg give the better quality. Nutmeg with maturity degree of 7 months contain 0 % CN, 7.16 %  ABCD, 13.09 % Shrivel, and 79.75 % BWP. Nutmeg with maturity degree of 8 months contain 7.90 % CN, 13.09 % ABCD, 13.3 % Shrivel, and 65.68 % BWP. Nutmeg with maturity degree of 9 months contain 30.12 % CN, 38.27 % ABCD, 20.99 % Shrivel, and 10.62 % BWP. Key words: quality analysis, different degrees of maturity, sun drying, nutmeg
UJI KINERJA ALAT PENYULINGAN NIRA AREN MENJADI BIOETANOL DI KELOMPOK TANI HUTAN TAYAPU DESA TALAWAAN KECAMATAN TALAWAAN KABUPATEN MINAHASA UTARA Solar, Trivano; Wenur, Frans; Lengkey, Lady C. Ch. E.
Jurnal Teknologi Pertanian (Agricultural Technology Journal) Vol 12 No 2 (2021): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Jurnal Teknologi Pertanian (Agricultural Technology Journal)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.v12i2.52694

Abstract

This study aims to determine the performance of the distillation tool aid by the North Sulawesi Forestry Service for the Hutan Tayapu Farmer Group consisting of temperature conditions in the distillation process, alcohol content, distillation rate, product yield, and energy consumption as well as to calculate the energy efficiency of the distillation tool. This research uses experimental methods. Data is presented in tables and graphs, then computed and analyzed descriptively. Bioethanol production is carried out 2 times each using 100 liters of palm sap. The results showed that the distillation process took place at a temperature ranging from 29.2 °C to 100.9 °C. The obtained alcohol content ranged from 26% to 64%, with energy efficiency of 4.96% for the appliance, and the distillation rate in the range of 1.87-8.40 liter/hour.
Modifikasi Alat Pemetik Buah Pala Model Galah DTR TETA 19 rossok, demianus; Ludong, Daniel; Lengkey, Lady
Jurnal Teknologi Pertanian (Agricultural Technology Journal) Vol 15 No 1 (2024): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Jurnal Teknologi Pertanian (Agricultural Technology Journal)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.v15i1.54653

Abstract

This study aims to modify the nutmeg harvesting tool pole model prototype 1 and test the performance of nutmeg harvesting tool pole model that has been modified or harvesting tool DTR TETA 19. This study uses experimental methods, tools that have been modified and then tested to determine the performance of the tool by calculating the harvesting capacity of the fruit/minute and also the capacity of the fruit/hour. The data obtained are arranged in Tabular Form and analyzed descriptively. The conclusion of this study is DTR Teta 19 harvesting tool is superior to the previous tool or nutmeg harvesting tool pole model prototype 1, where DTR Teta 19 tool has an average capacity with two harvests of 199 pieces/hour, while the harvesting capacity of the prototype 1 harvesting tool with one harvest of 152 pieces / hour has a difference of 47 pieces (harvesting with a tool length of 200 cm). As for harvesting with a tool length of 300 cm has a difference in harvesting capacity of 56 pieces / hour where the tool DTR TETA 19 superior. and harvesting with a tool length of 400 cm harvesting tool DTR TETA 19 is superior to the difference in harvesting capacity of fruit / hour which is 21 pieces.
Co-Authors Awuy, Gebby Bambang S. Purwoko Daniel Ludong, Daniel David Rumambi, David Dedie Tooy Denny Saroinsong Emi Y. Sagas, Emi Y. Frans Wenur Henriette Jacoba Roeroe, Henriette Jacoba Herry F. Pinatik I Wayan Budiastra Ireine A. Longdong Joubert Marmis, Joubert Langi, Jois Limbong Lengkey, Jovanka P. Longdong, Ireine Adriana Ludong, Daniel P. M. Melisa J. Sahambangung, Melisa J. Mikael, Florensi Wahyuni Mochtar, Juventus Yoel Pinem, Esron H. Rantung, Livia E. Robert Molenaar Rompas, Krisye Sharon rossok, demianus Semin Semin Solar, Trivano Stella Kairupan Tongkeles, Nelly Selvia