List of Articles شیرخشک

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  1 - Investigating the Factors Affecting the Economic Return Rate of the Construction Plan of Dry Milk Powder Production Plant using Comfar Software
  ALI HABIBI Ali Shahabi
  This research has been studied and developed for a dairy company which is under production that needs to build a new dairy powder factory to complete its production process cycle, product portfolio upgrade and to reach the desired point of production and cost. The desig More

  This research has been studied and developed for a dairy company which is under production that needs to build a new dairy powder factory to complete its production process cycle, product portfolio upgrade and to reach the desired point of production and cost. The designed capacity to produce dairy powders, including industrial milk powder and whey powder are 4200 tons per year. In order to build a dairy powder factory, it is necessary to do market studies, technical knowledge of the product, technical studies and study of project cost. For economic analysis of the plan, it is necessary to do precise calculation on fixed and variable investment costs, production costs, sales and cash flows, and finally to extract the financial indexes. In this research, the method of economic studies was based on Comfar software analysis, therefor the main target of this article is to investigate the results of economic analysis to predict the factors which are affecting the efficiency of the project. Based on the information provided in this article, the changes of systematic and non-systematic factors like the cost of project investment, changing in sales and prices of produced products and the cost of material, and inflection rate has significant impact on the rate of investment return. So the investor should be informed and consider economical indexes and parameters which are affecting investment plan in order to make the right decision. Manuscript profile
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  2 - Investigation of heavy metals and important micro nutrients in milk powder and common baby food in Tehran market
  Mahdieh Khazai Shiva Dehghan Abkenar Nazanin Khakipour
  10.30495/jftn.2022.65970.11192
  Introduction: Powdered milk or complementary foods, despite the importance ofbreastfeeding, play an important role in providing baby food in the world. The aim of thisstudy was to measure the amount of heavy metals in baby food. Heavy metals cadmium, lead,and arsenic ca More

  Introduction: Powdered milk or complementary foods, despite the importance ofbreastfeeding, play an important role in providing baby food in the world. The aim of thisstudy was to measure the amount of heavy metals in baby food. Heavy metals cadmium, lead,and arsenic cause the highest effects in humans, especially in children, and Fe, Mg, Ca, andZn are important micronutrients that, if deficient in nutrients, can have adverse effects onchildren's health.Materials and Methods: This study was performed on 8 baby food samples from 6 commoncommercial products in the market. Sampling was carried out by census method andmeasurement by induced plasma emission ICP-OES methods.Results: The results were reported by descriptive statistics. The results showed that arsenicranged between 2.8 to 8 ppm in all the samples examined that indicated excessiveconcentration of this heavy metal while the trace concentration of cadmium was observed.Lead concentration was in the range of 0.012 to 0.103 ppm. The concentration of iron,calcium, magnesium and zinc in some samples agreed with the standard values while in someindicated lower content.Conclusion: According to the results of this investigation, the amount of arsenic in baby foodsamples is higher than the specified limit. Some attention should be given to those samplesthat contain lower contents of calcium and zinc as noticed by standard values. Manuscript profile
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  3 - Using of Microbial Transglutaminase as a Substitute for Part of Skim Milk Powder in Spinach Yoghurt
  Vajiheh Fadaei Noghani Azam Mofidi Mahdi Zarei
  Introduction: Microbial transglutaminase (MTGase) enzyme is one of transferase enzymes that can catalyze the formation of ε-(δ glutamyl-)-lysine cross links in proteins via an acyl transfer reaction. The enzymatic cross linking of proteins by means of micr More

  Introduction: Microbial transglutaminase (MTGase) enzyme is one of transferase enzymes that can catalyze the formation of ε-(δ glutamyl-)-lysine cross links in proteins via an acyl transfer reaction. The enzymatic cross linking of proteins by means of microbial transglutaminase strengthens protein-based food structures at the molecular level and positively affects properties such as serum holding capacity and gel firmness. In this study, the effect of using this enzyme (0.1, 0.2 and 0.3 g L-1) ,as a substitute for part of the skim milk powder, was evaluated. Materials and Methods: The effect of enzyme on selected physicochemical (eg pH, titratable acidity, syneresis and viscosity) and organoleptic properties (texture, flavor, odor and overall acceptability) of spinach yoghurt was examined. Evaluations were performed at 0, 5, 10 and 15 days of storage at 4°C. Results: In general, addition of different concentrations of MTGase caused no significant changes in acidity and pH of yoghurt samples. However, it increased the viscosity and decreased the syneresis. It was indicated that the concentration of 0.1 g L-1 could be considered as the optimum concentration for MTGase. Although higher concentrations could produce better properties, but it was not economical, because fewer concentration of enzyme was able to create a sample similar to the control. Conclusion: The results showed that the MTGase is an acceptable substitute for skim milk powder in spinach stirred yoghurt. Manuscript profile
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  4 - Detection and determination of Melamine in infant formula by ELISA method
  امیر Shakerian گلی Savabi Esfahani
     Thirty-six samples of infant formula with different production dates and various brands were purchased from Isfahan city during 2012. The samples were assayed for the presence and quantity of melamine by ELISA screening method. According to the results, in More

     Thirty-six samples of infant formula with different production dates and various brands were purchased from Isfahan city during 2012. The samples were assayed for the presence and quantity of melamine by ELISA screening method. According to the results, in any infant formula melamine contamination was observed above the detection limit of the kit (10 µg/L). Therefore, it was concluded that the infant formula at Isfahan retail is not considered a health hazard from the melamine contamination point of view. Manuscript profile
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  5 - Evaluation of the prevalence rate and antibiotic resistance pattern of Bacillus cereus in infant formula and foods containing formula
  Beigom Omidi Shila Safaian Nahid RahimiFard Rezvan Mosavi Nadoshen Babak Porakbari
  10.30495/jfm.2023.1977383.1802
  The present study was conducted with the aim of evaluating the antibiotic resistance pattern of Bacillus cereus in ice cream, cake, cheese, and infant formula. For this purpose, 600 samples were prepared from food sales centers in Tehran and transferred to the quality c More

  The present study was conducted with the aim of evaluating the antibiotic resistance pattern of Bacillus cereus in ice cream, cake, cheese, and infant formula. For this purpose, 600 samples were prepared from food sales centers in Tehran and transferred to the quality control laboratory of the Faculty of Veterinary Medicine of Tehran University of Medical Sciences and cultured on the special culture medium of Bacillus cereus, MYP, which contained polymyxin B supplement and egg yolk. Then, from the pink colonies, gram staining and catalase test were performed and the sensitivity of the isolated bacteria to ampicillin, penicillin, vancomycin, cefazolin, methicillin, cefixime, sulfamethoxazole, trimethoprim, chloramphenicol, cefepime and tetracycline was evaluated based on the disc diffusion method. According to the results, no contamination with B. cereus was observed in any of the cake, cheese and ice cream samples. However, out of 150 infant formula samples, 30 samples were infected with B. cereus (18 samples < 10 CFU/g, 7 samples had 10-102 CFU/g, and 5 samples>102 CFU/g). B. cereus isolated from infant formula has the highest sensitivity to vancomycin (67.76%), tetracycline (70%), and chloramphenicol (33.63%) antibiotics and had the highest level of resistance to penicillin (100%), cefixime antibiotics (100%) and ampicillin (67.96%). The general results indicated a significant prevalence of B. cereus in the tested milk, which due to the growing trend of using milk powder and more importance to the quality and health evaluation of milk powders for consumption, contamination investigation and preventive approaches should be given more attention. Manuscript profile