scholarly journals Pengaruh Ketebalan Bahan Dan Jumlah Desikan Terhadap Laju Pengeringan Jahe (Zingiber Officinale Roscoe) Pada Pengering Kombinasi Surya dan Desikan

2019 ◽  
Vol 8 (2) ◽  
pp. 61-66
Author(s):  
Rosdanelli Hasibuan ◽  
Muhammad Alfikri Ridhatullah

Ginger is a spice plant that is usually used as a seasoning in cooking or raw material for medicine, traditional or industrial medicine. Ginger has a high-water content so its easily contaminated with microbes and has active ingredients (gingerol) which are easily damaged by high temperatures. Ginger drying is intended for maintaining the quality of dry ginger and keep ginger from microbes. The drying process has done in continuously with solar dryer using flat plate type collector during the day and at night using the Molecular Sieve 13x desiccant. Drying varies the thickness of ginger 2 mm, 4 mm, and 6 mm, and the amount ratio of desiccant: 1:1; 1:2; and 1:3.  To get drying characteristics, every 1-hour mass calculated using an electric scale, and data logger every 5 minutes calculates the temperature and humidity rate (RH) in the drying chamber. The result from ginger drying is the thickness of 6 mm needed more than 20 hours of drying process so that it needed the combination of dryer compared to other thickness, and from quality analysis results of dry ginger, ash content parameters already accordance with SNI standards, and 1:1 material and desiccant ratio is the variation that most closely matches the SNI standard.

2010 ◽  
Vol 6 (1) ◽  
pp. 36
Author(s):  
Silvana Dinaintang Harikedua

The objective of this study was to investigate the effect of ginger extract addition and refrigerate storage on sensory quality of Tuna through panelist’s perception. Panelists (n=30) evaluated samples for overall appearance and flavor attribute using hedonic scale 1–7. The sample which is more acceptable by panelists on flavor attributes having 3% gingers extract and storage for 3 days. The less acceptable sample on flavor attribute having 0% ginger extract and storage for 9 days. On the other hand, the sample which is more acceptable by panelists on overall appearance having 0% ginger extract without storage treatment. The less acceptable sample on overall appearance having 3% ginger extract and storage for 9 days.


2020 ◽  
Vol 8 (11) ◽  
pp. 5934-5942
Author(s):  
Roseline Esi Amoah ◽  
Faustina Dufie Wireko‐Manu ◽  
Ibok Oduro ◽  
Firibu Kwesi Saalia ◽  
William Otoo Ellis

2020 ◽  
Vol 8 (11) ◽  
pp. 6112-6119
Author(s):  
Roseline Esi Amoah ◽  
Sureshkumar Kalakandan ◽  
Faustina D. Wireko‐Manu ◽  
Ibok Oduro ◽  
Firibu Kwesi Saalia ◽  
...  

1944 ◽  
Vol 6c (3) ◽  
pp. 209-216 ◽  
Author(s):  
J. C. Medcof

Low quality shells are easily broken, have a high water content and low specific gravity, and contain little pearly and much chalky material. Pearly shell is secreted throughout the season before and after the chalk which it incloses. Chalky areas occur in all shells, have functional importance, are commonest in oysters that are poorest in late summer and are regular in their order of appearance and position on the shell. They are composed of large vertical calcite crystals in a porous mass of smaller crystals with a protein matrix.


2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Marta Chmiel ◽  
Lech Adamczak ◽  
Katarzyna Wrońska ◽  
Dorota Pietrzak ◽  
Tomasz Florowski

The aim of this study was to determine the effect of differentiated air relative humidity during the drying process on selected quality features of TSG (traditional specialties guaranteed) pork and poultry-pork kabanosy. After heat treatment and 24-hour cooling at 4–6°C, the products were placed in three chambers at 15°C with differentiated air relative humidity: 60, 70, and 80%, respectively. The drying process was carried out until all variants of kabanosy achieved the required final yield of the product (<68%). Color components, water activity and shear force, water, protein, fat, and salt content, and the TBARS indicator values were determined. The drying process might be shortened (~50%) by a reduction of humidity in the drying chamber from 80 to 60%. The changes in the content of chemical components in pork kabanosy compared to poultry-pork ones demonstrated the different dynamics of the drying of the two types of kabanosy and the need for the selection of optimum drying conditions relative to raw material composition.


2021 ◽  
Vol 4 (1) ◽  
pp. 183
Author(s):  
Satya Bodhinanda ◽  
Aniek Prihatiningsih

Landfill soil (TPA) has great potential of utilization in construction purpose. Landfill soil has similar characteristic with clay soil that has high water content also contain organic and inorganic material caused by garbage heap. One of the problem in utilizing landfill soil was the low quality of the soil that cause big settlement for the structure. Settlement was an important aspect in performing a construction. Soil stabilization for the landfill soil needed to decrease amount of settlement. Structure model using one, two, three, four floor of load and calculate the settlement occur on the heaviest load location of the foundation. Foundation base was circle and using shallow foundation reconsidering shallow foundation effective for four floor load. Chemical stabilization using 2 methods: Sodium Hydroxide 6% and Limestone 3-4,5%. Based on the calculation, found that Sodium Hydroxide is more effective in decreasing settlement occurred and able to decrease the settlement until 32,42% for the  floor load. However, those methods can’t fulfil the 15 cm settlement limit. Tanah bekas tempat pembuangan akhir (TPA) memiliki potensi besar untuk dimanfaatkan dalam bidang konstruksi. Tanah bekas TPA umumnya memiliki karakteristik serupa dengan tanah lempung berkadar air serta memiliki material organik dan anorganik dari timbunan sampah. Salah satu masalah dalam memanfaatkan tanah bekas TPA adalah rendahnya kualitas tanah yang mengakibatkan penurunan besar pada struktur. Perbaikan pada tanah bekas TPA diperlukan untuk mengurangi besarnya penurunan yang terjadi. Penurunan merupakan aspek penting dalam suatu perancangan konstruksi, maka dari itu batasan pada penurunan ditetapkan untuk menghindari penurunan yang berlebihan yang dapat merusak struktur. Permodelan menggunakan beban struktur 1,2,3, dan 4 lantai dan dihitung penurunan yang terjadi pada fondasi dengan beban struktur terbesar. Penampang fondasi berbentuk lingkaran mempertimbangkan beban percobaan hingga 4 lantai cocok untuk fondasi dangkal. Stabilisasi tanah secara kimiawi menggunakan 2 metode yaitu Sodium Hidroksida 6% dan batu kapur 3-4,5%. Berdasarkan hasil perhitungan, didapati stabilisasi menggunakan Sodium Hidroksida lebih efektif dalam mengurangi penurunan tanah yang terjadi dan mampu mengurangi besarnya penurunan hingga 32,42% pada beban struktur 4 lantai. Namun, stabilisasi tanah menggunakan kedua metode belum dapat mencapai batas aman penurunan sebesar 15 cm.


2019 ◽  
Vol 5 (2) ◽  
pp. 101
Author(s):  
Oktavio Rosani ◽  
Devy Susanty ◽  
Ary Triyanto

Numbers of Mold and Yeast on White Pepper from BangkaWhite pepper is one of Indonesia's spices that are needed for both public consumption and exports. Post-harvest processing of white pepper by farmers is often done with unclean. Each source of white pepper has different water content and will affect the quality of white pepper. In this study, seven samples (S1, S2, S3, S4, S5, S6, S7) were from Bangka. All samples tested had higher water content than SNI quality standard (13%), but still below the quality standard 2 (18%). Sample S2 has the highest water content compared to other samples. Sample S1 and S2 have high Numbers of Mold and Yeast (AKK) and do not suitable with quality standart of BPOM. Of all samples, S2  had the highest AKK (5,51 x 104 colony / g) and sample S5 had the smallest AKK (8,8 x 102 colony / g). This shows the relationship between water content in white pepper with AKK. White pepper that has a high water content has a high AKK, whereas white pepper that has low moisture content has low AKK.Keywords: white pepper, Numbers of Mold and Yeast, moisture contentABSTRAKLada putih adalah salah satu rempah Indonesia  yang  banyak dibutuhkan baik untuk konsumsi masyarakat ataupun ekspor. Proses pengolahan pasca panen lada putih oleh petani sering dilakukan dengan tidak bersih. Setiap sumber lada putih memiliki kadar air yang berbeda dan akan mempengaruhi kualitas lada putih. Pada penelitian ini,tujuh sampel (S1, S2, S3, S4, S5, S6, S7)  berasal dari Bangka. Semua sampel yang di uji memiliki kadar air yang lebih tinggi dari standar mutu 1 SNI (13%), namun masih berada di bawah standar mutu 2 (18 %). Sampel S2 memiliki kadar air yang paling tinggi dibandingkan dengan sampel lainnya. Sampel S1 dan S2 memiliki  (Angka Kapang Khamir) AKK yang tinggi dan tidak memenuhi syarat mutu. BPOM. Dari semua sampel, sampel S2 memiliki AKK paling tinggi (5,51 x 104 koloni/g) dan sampel S5 memiliki AKK paling kecil (8,8 x 102 koloni/g). Hal ini menunjukan hubungan antara kadar air pada lada putih dengan AKK. Lada putih yang memiliki kadar air tinggi memiliki AKK yang juga tinggi, sedangkan lada putih yang memiliki kadar air rendah memiki AKK yang  rendah.Kata Kunci: Lada putih, Angka kapang khamir, Kadar Air


Author(s):  
Oleh Tsurkan ◽  
Dmytro Prysiazhniuk ◽  
Ivan Didyk

One of the important stages of growing seeds of agricultural crops is its post-harvest processing, which includes the drying process, is the main and one of the most effective methods for storing and processing agricultural raw materials. The use of vibration drying equipment is especially effective in high-tech processes taking place in the seed industry, where product moisture is the most important condition for the implementation of technology. The object of research in this article was the technological process of post-harvest processing of high-moisture pumpkin seeds, in particular drying. The purpose of the work was to analyze the current state of post-harvest processing of high-moisture pumpkin seeds and to establish promising methods and means for intensifying this process with a simultaneous increase in the quality of the final raw material obtained. The task of the work was: to review research and publications on the state of post-harvest processing of pumpkin seeds in Ukraine, to establish the features of its post-harvest dues, in particular drying, to get acquainted with the technical means and technologies for performing the technological process of drying pumpkin seeds, to establish the main disadvantages of the existing drying equipment, to determine and to propose new promising technologies and technical solutions for intensifying the drying process of pumpkin seeds with a simultaneous increase in the quality of the final raw material with minimal energy consumption and translate them into a developed model of a vibration dryer, which sequentially implements filtration and convection stages of drying. The research methodology was based on a review analysis of existing studies and publications on the state of post-harvest treatment of pumpkin seeds in Ukraine and the search for ways to intensify this process with a simultaneous increase in the quality of the final raw material obtained. In scientific work, based on the results of the study, it was found that the existing grain drying equipment does not meet the requirements for drying high-moisture pumpkin seeds, therefore there is a need for the development, research and implementation of energy-efficient schemes and structures. The existing samples of domestic equipment for post-harvest processing of high-moisture pumpkin seeds are morally and physically obsolete, do not provide flexibility in the execution of the technological process, are energy- and metal-intensive and cannot be used in processing lots of seed material. The proposed design of a vibrating dryer, which sequentially implements filtration and convection stages of drying pumpkin seeds. The developed installation provides an intensification of this process with minimal energy consumption while increasing the quality of the final raw material obtained.


2019 ◽  
Vol 7 (2) ◽  
pp. 183 ◽  
Author(s):  
Sri Subekti ◽  
Achmad Amarudin ◽  
Moch Amin Alamsjah

Abstract Seaweed Eucheuma sp. is one of the natural resources of Indonesia. Seaweed many processed in dry form after going through a drying process or processed into food ready for consumption. Seaweed is no longer just eaten or used to direct treatment, but can be processed into jelly, Algin, carrageenan (carrageenan) and furselaran (furcellaran) which is an important raw material in the food industry, pharmaceuticals, cosmetics and so on. This plant has an important economic value in various industries such as pharmaceutical, cosmetics, food, textile and paper industries. This study aims to determine the Fixer solution of Tawas, Poly Aluminium Chloride and Kapur Tohor most effective at biopigmen Eucheuma sp. instead of synthetic dyes in textile and determine the best concentration of the solution Fixer Tawas, Poly Aluminium Chloride and Tohor in deciding the color biopigmen Eucheuma sp. instead of synthetic dyes in textiles. This study uses a randomized block design (RAK). This research was conducted by observing and comparing the effect Fixer solution between Tawas, Poly Aluminium Chloride and Kapur Tohor against staining quality biopigmen seaweed Eucheuma sp. instead of synthetic dyes in textiles. Organoleptic test results showed fixation material Poly Aluminium Chloride able to maintain better color than the color produced by the fixation Tawas and Kapur Tohor. Poly Aluminium Chloride fixation material produces a bright brown color, Tawas brown, reddish brown Tohor. The test results of color fastness to rubbing cloth (dry) indicates that the color fastness of the strongest to the weakest sequentially generated from Tawas fixation materials, lime Tohor, Poly Aluminium Chloride, while the test fastness to washing soap and desecration of white cloth from the strongest to The weakest is Poly Aluminium Chloride, Kapur Tohor and Tawas.


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