-
Moisture Adsorption Studies on Soy - Mumu Supplemented with Moringa Leaf Powder
Igbabul Bibiana Dooshima,
Shar Faustina Mbanengen,
Ikya Julius,
Amove Julius
Issue:
Volume 4, Issue 6, December 2016
Pages:
67-73
Received:
27 September 2016
Accepted:
1 November 2016
Published:
23 November 2016
DOI:
10.11648/j.abb.20160406.11
Downloads:
Views:
Abstract: Moisture adsorption Studies was carried out on Soy-mumu, a Nigerian cereal-based food product supplemented with 0, 10, 15 and 20% Moringa leaf powder at four different temperatures(20°C, 30°C, 40°C and 50°C) using the standard static gravimetric method. The different blends of Soy-mumu products were subjected to water activities of 0.1 – 0.957 for each of the four temperatures (20°C, 30°C, 40°C and 50°C) and data obtained were analysed using Oswin, Henderson and GAB models while thermodynamics of moisture transfer were estimated using Clausius-Clapeyron and kinetic compensation equations. The moisture adsorption isotherms were sigmoid in shape (type II). The equilibrium moisture content (EMC) of the Soy-mumu products increased with increase in water activity at constant temperature and were lower as the temperature increased at constant water activity. The sorptive capacity of Soy-mumu products increased with increasing levels of Moringa leaf powder supplementation and exhibited higher isotherms. Using the percent root mean square of error (% RMS), Oswin model gave the best fit for describing the adsorption isotherms of the Soy-mumu products while GAB and Henderson models fitted poorly (<10% RMS). Monolayer moisture content (Mo) and surface area (So) of adsorption decreased with increase in temperature. The GAB monolayer moisture contents were higher than BET monolayer moisture contents. The isosteric heat of sorption generally decreased as the moisture content increased. The maximum isosteric heat (ΔHst) was 14.1928; 14.19288; 37.0272 and 57.9120kj/mol for samples that were supplemented with 0, 10, 15 and 20% Moringa leaf powder respectively. The enthalpy-entropy compensation theory is suitable for describing the moisture adsorption phenomenon of the Soy-Mumu products.
Abstract: Moisture adsorption Studies was carried out on Soy-mumu, a Nigerian cereal-based food product supplemented with 0, 10, 15 and 20% Moringa leaf powder at four different temperatures(20°C, 30°C, 40°C and 50°C) using the standard static gravimetric method. The different blends of Soy-mumu products were subjected to water activities of 0.1 – 0.957 for ...
Show More
-
Application Issues of Biometric Technologies in Electronic Medicine
Tofiq Kazimov,
Shafagat Mahmudova
Issue:
Volume 4, Issue 6, December 2016
Pages:
74-78
Received:
28 September 2016
Accepted:
31 October 2016
Published:
25 November 2016
DOI:
10.11648/j.abb.20160406.12
Downloads:
Views:
Abstract: This article aimed to analyze biometric technologies, opportunities and prospects of using those in electronic medicine. The ways of increasing reliability of medical service in health by using biometric technologies are embodied. Identification issues according to the image of skull and head of human corpse shot while he was alive are touched upon. Possibilites of application of biometric technologies in electronic medicine are investigated, and their advantages are mentioned. Biometric technology can revolutionize in electronic medicine, thus human eye, hand, face or fingerprint can be scanned and by using them human can be easily identified. The use of this technology will lead to an increase in the level of security in the medical field.
Abstract: This article aimed to analyze biometric technologies, opportunities and prospects of using those in electronic medicine. The ways of increasing reliability of medical service in health by using biometric technologies are embodied. Identification issues according to the image of skull and head of human corpse shot while he was alive are touched upon...
Show More
-
Design of Portable Time-Resolved Fluorometer
Chongde Zi,
Junsheng Shi,
Yonghang Tai,
Huan Yang,
Xicai Li
Issue:
Volume 4, Issue 6, December 2016
Pages:
79-84
Received:
2 December 2016
Published:
5 December 2016
DOI:
10.11648/j.abb.20160406.13
Downloads:
Views:
Abstract: A miniaturization time-resolved fluorescence analyzer was designed based on immunofluorescence and embedded technology, this instrument can be utilized to detect the immunochromatographic strip to achieve quantitative inspection and analysis of analytes in human blood or body fluid. By mechanical scanning means point-by-point assay, using UV-LED irradiation the fluorescence labeled immunocomplex on the immunochromatographic strip, and the fluorescence was emitted after being excited. Fluorescent light passes through narrow-band optical filters and converted to electrical signal by Silicon photodiode (Si PIN). After amplification and analog-digital conversion, the signal is sent to the micro-controller STM32F103 for processing. The fluorescence intensity distribution of the reagent strip was obtained after the scan detection finished, and the concentration of the substance can be calculated based on the known standard curve. After testing, the instrument has a wide dynamic range of measurement. It not only has a reliable repeatability (CV<0.2%) performance in the detection of concentration larger than 100µg/mL, but also hasdemonstrate stable validate features (CV=2.6%) when the concentration only at 1µg/mL. It has commendably application prospects in point-of-care test detection (POCT).
Abstract: A miniaturization time-resolved fluorescence analyzer was designed based on immunofluorescence and embedded technology, this instrument can be utilized to detect the immunochromatographic strip to achieve quantitative inspection and analysis of analytes in human blood or body fluid. By mechanical scanning means point-by-point assay, using UV-LED ir...
Show More
-
Synthesis, Characterization and Permofarmance Activity of Metal Soap of Calcium, Cobalt, Iron and Copper from Palm Kernel Oil as a Drier in Paint
Issue:
Volume 4, Issue 6, December 2016
Pages:
85-90
Received:
21 October 2016
Accepted:
12 November 2016
Published:
6 December 2016
DOI:
10.11648/j.abb.20160406.14
Downloads:
Views:
Abstract: The behavior of Palm Kernel Oil was saponified by potassium hydroxide to form soluble soap which was later reacted with solutions of copper, cobalt, Iron and calcium to produce the metal soaps which were used as drier in coating mixture (Paint). The performance of these metal soaps has been studied. The effect of environmental and corrosive factors on paints was also studied. From the study, the formulated paint samples using metal soap had low specific gravity (1.45-1.47). This is an indication that more metal soap can be incorporated into the paint. Full hardness of paint samples was within the range (0.38-0.41mm) which implies that the samples will have high tolerance to anti-corrosive coating. The paints showed strong adhesion properties that are capable to withstand abrasive and corrosive agents. Also when exposed to surfaces like paper and glass, the exhibited strong adaptability without rust. Considering the drying time of coating mixture (paints) containing metal soaps showed increased oxidizing activity of drier and shortened drying time. The progress of the formulated metal soap paint reaction on storage was monitored and confirmed using physical methods. The high performance of the paints prepared from metal soap is good evidence to justify their utilization as driers in the surface coat industry.
Abstract: The behavior of Palm Kernel Oil was saponified by potassium hydroxide to form soluble soap which was later reacted with solutions of copper, cobalt, Iron and calcium to produce the metal soaps which were used as drier in coating mixture (Paint). The performance of these metal soaps has been studied. The effect of environmental and corrosive factors...
Show More
