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EAAP instrument installation

Ayetenew Abita Desa
Ayetenew Abita Desa

The document summarizes the installation of laboratory equipment at the Kulumsa Agricultural Research Institute in Ethiopia in October 2015. It details the installation of a near infrared reflectance spectrophotometer (NIRS) for analyzing agricultural commodities, and two milling machines (CD1 and CD2) for milling tests of bread and durum wheat. It also installed a mixer for tasks like tempering wheat before milling. The equipment was installed successfully but the milling machines require a three-phase electrical system for full operation.

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Ethiopian institute of Agricultural Research Agricultural and Nutrition Research Laboratories Directorate Agricultural Quality Research Laboratory Report on Laboratory Equipment Installation at Kulumsa Agricultural Research Institute By Ayetenew Abita & Yibrah Amare October, 2015
Installation of Infratech, Miller machine CD1, Miller machine CD2 and Mixer. 1) Installation of Infratech 1241 (NIRS (Near Infrared Reflectance Spectrophotometer)) NIRS is the name given for Near Infrared Reflectance Spectrophotometer, the instrument used for the quantification of chemical compounds by the principle of reflection of electromagnetic radiation after it shines in to the sample from the source halogen lamp. Since then, the electromagnetic light which is reflected will be detected after its signal changed in to electric signal as represented in Figure 1. Figure 1; Diagrammatic representation of NIRS The installed instrument is ideal for breeder for screening of agricultural commodities according to their specific intended interest where the sample is not distractible because of its capabilities of analysis as it is grain. The instrument is also very important for its fast speed of analysis without sample preparation; decreases labor cost and also minimize sample running cost too. Since the instrument is dependent on the wet chemistry, purchasing the equation is required because it costs time and needs trained personnel for developing the equation. Indeed, the project Halogen lamp Monochromator Sample Detector
has purchased for 12 equations including bread wheat and durum wheat, even though most of the equation is for crude ash and moisture. According to Dr. Mohammed, the installer of the equipment they have another equation which is critical for durum and bread wheat quality analysis including wet gluten, fat, ash, moisture & protein. Last but not least the instrument having multipurpose for determination of physicochemical composition of agricultural commodities was easy to use and operate installed successfully as shown in the figure 2. Figure 2: the newly installed Infratech 2) Installation of Milling Machine CD1 and Milling Machine CD2 The CD2 mill which is important for the milling test of the durum wheat was installed successfully as shown Figure 3. The instrument has two main parts; a) A breaking part equipped with corrugated rolls which goal is to separate bran from the kernel. The breaking operation gives two types of products, bran and rough semolina. b) A reduction part also equipped with three corrugated rolls, their role is to reduce the rough semolina produced previously into coarse semolina, fine semolina and flour. The CD1 mill which is important for the milling test of bread wheat was installed successfully as shown Figure 3. This instrument has also two main parts;
a) A breaking part which gives three types of products flour, semolina and coarse bran. b) A Reduction part which reduces the perversely produced semolina into flour and fine barn. The instrument requires three phase electrical system for the operation where ours electrical installation in the laboratory is two phase. Therefore temporary testing of the instrument was undertaken by using direct breaker electric supply system. As a result it is better to have three phase electrical system for future operations of the instrument. Figure 3; the newly installed CD1 and CD2 mill respectively 3) Installation of MR2L/MR10L mixer The multipurpose mixer was also installed successfully as shown figure 4. Its application are ; temper wheat before milling, mix flour after milling and preparation of wheat and flour blend. Figure 4; the newly installed mixer

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EAAP instrument installation

  • 1. Ethiopian institute of Agricultural Research Agricultural and Nutrition Research Laboratories Directorate Agricultural Quality Research Laboratory Report on Laboratory Equipment Installation at Kulumsa Agricultural Research Institute By Ayetenew Abita & Yibrah Amare October, 2015
  • 2. Installation of Infratech, Miller machine CD1, Miller machine CD2 and Mixer. 1) Installation of Infratech 1241 (NIRS (Near Infrared Reflectance Spectrophotometer)) NIRS is the name given for Near Infrared Reflectance Spectrophotometer, the instrument used for the quantification of chemical compounds by the principle of reflection of electromagnetic radiation after it shines in to the sample from the source halogen lamp. Since then, the electromagnetic light which is reflected will be detected after its signal changed in to electric signal as represented in Figure 1. Figure 1; Diagrammatic representation of NIRS The installed instrument is ideal for breeder for screening of agricultural commodities according to their specific intended interest where the sample is not distractible because of its capabilities of analysis as it is grain. The instrument is also very important for its fast speed of analysis without sample preparation; decreases labor cost and also minimize sample running cost too. Since the instrument is dependent on the wet chemistry, purchasing the equation is required because it costs time and needs trained personnel for developing the equation. Indeed, the project Halogen lamp Monochromator Sample Detector
  • 3. has purchased for 12 equations including bread wheat and durum wheat, even though most of the equation is for crude ash and moisture. According to Dr. Mohammed, the installer of the equipment they have another equation which is critical for durum and bread wheat quality analysis including wet gluten, fat, ash, moisture & protein. Last but not least the instrument having multipurpose for determination of physicochemical composition of agricultural commodities was easy to use and operate installed successfully as shown in the figure 2. Figure 2: the newly installed Infratech 2) Installation of Milling Machine CD1 and Milling Machine CD2 The CD2 mill which is important for the milling test of the durum wheat was installed successfully as shown Figure 3. The instrument has two main parts; a) A breaking part equipped with corrugated rolls which goal is to separate bran from the kernel. The breaking operation gives two types of products, bran and rough semolina. b) A reduction part also equipped with three corrugated rolls, their role is to reduce the rough semolina produced previously into coarse semolina, fine semolina and flour. The CD1 mill which is important for the milling test of bread wheat was installed successfully as shown Figure 3. This instrument has also two main parts;
  • 4. a) A breaking part which gives three types of products flour, semolina and coarse bran. b) A Reduction part which reduces the perversely produced semolina into flour and fine barn. The instrument requires three phase electrical system for the operation where ours electrical installation in the laboratory is two phase. Therefore temporary testing of the instrument was undertaken by using direct breaker electric supply system. As a result it is better to have three phase electrical system for future operations of the instrument. Figure 3; the newly installed CD1 and CD2 mill respectively 3) Installation of MR2L/MR10L mixer The multipurpose mixer was also installed successfully as shown figure 4. Its application are ; temper wheat before milling, mix flour after milling and preparation of wheat and flour blend. Figure 4; the newly installed mixer