Day 2 :
- Food Packaging
Session Introduction
Muhammad Hassan
M.Sc. (Hons) Food technology,University of Agriculture, Faisalabad.
Title: Use of Agro-Industrial Wastes: An Effort to Preserve Food & Agriculture Products
Biography:
My name is Muhammad Hassan. I am student of M.Sc. (Hons) Food technology at University of Agriculture, Faisalabad.
Abstract:
The current study was an attempt to explore the antioxidative potential of phenolics from agroindustrial by-products and their further utilization in oil and baked items as natural antioxidants. Accordingly, apple, banana, citrus & potato peels along with carrot pomace were tested for the extraction of phenolics using methanol, ethanol and hexane as solvents. Among the solvents methanol and ethanol were selected as efficient extracting mediums. Citrus peel followed by potato peel extract showed relative high pH stability. Likewise, citrus peel extract showed highest total phenolics of 16.84g/100g whereas DPPH (1, 1-diphenyl-2-picrylhydrazyl) activity was maximum in potato peel extract i.e. 78.69g/100g. Afterwards, citrus peel and carrot pomace extracts were screened for their preserving effect in vegetable oils during two month storage. The effect of phenolics was estimated by peroxide value (POV) and thiobarbituric acid (TBA) number. As a function of treatment and storage, minimum values for these traits were recorded for citrus peel methanolic extract. In this context, POV in corn, cotton and sunflower oils were 10.06, 12.06 and 4.09meq/Kg, respectively, whereas TBA values were 5.90, 4.33 and 2.79MAD/Kg, respectively. Afterwards, baked products including cookies and cakes with 0.1% citrus peel and carrot pomacemethanolic extract were prepared and subjected to sensory evaluation. The upshots of instant investigation revealed that phenolic contents from selected agro-industrial by-products especially citrus peel methanolic extract has potential to be utilized in food products without any deleterious effect on end product. This mere effort can support Pakistan economy in an efficient way by focusing on neglected areas of agriculture processing industry.
- Food Microbiology and Food Safety
Session Introduction
Idowu Peter Ayodeji
MSc, University of Fort Hare, South Africa
Title: Productive and Reproductive performance of indigenous poultry breeds in South
Biography:
Idowu Peter Ayodeji has completed his MSc from University of Fort Hare, South Africa and PhD student in Tshwane University of Technology He has published more than 4 papers in reputed journals and has been serving as reviewer in reputable journals. He is an animal health facilitator and writer and editor of animal breeding and genetics module. He is also an animal breeder and geneticist
Abstract:
Indigenous poultry plays a crucial role in meeting protein needs due to his accessibility, price and ease breeding methodologies. Productive and reproductive performance of available breeds of indigenous poultry in South Africa was analysed using structured survey system, there are basically four phenotypically distinquished breeds: Naked Neck, Ovambo, Potchefstroom Koekoek and Venda. To achieve this, six different villages were used for this study from July, 2017 to June 2018 (12 months). Data observed were, Average age at production, Clutch per year (CPY), Duration of rearing (DR), egg laying length (EGL), Egg per clutch (EGC), Egg per year (EPY), hatchability (HATCH), mortality, Natural Brooding Period (NBP), Natural Incubating Period (NIP), Recovery Period (RP) and survivability at 10-12 weeks (SURV) from Seven thousand, five hundred and thirty eight (7538) indigenous chicken. Four phenotypically distinguished breeds were sampled with respective frequency Naked Neck (864), Potchefstroom Koekoek (2088), Ovambo (1838) and Venda breeds (2748) respectively. Potchefstroom Koekoek is observed to be a good egg producing breed with 15.11±0.25 eggs per clutch. Venda breed possess good mothering ability (hatchability) and high survivability with 86.03±0.31days and 82.70±0.26 days respectively. Naked Neck is known to be more prone to diseases with least (survivability) 60.08±0.25 days. Village was positively correlated with EGC and HATCH, EGY and SURV at p≤0.01 and p≤0.05 respectively. Rearing system was positively correlated with EGC. Rearing system was positively correlated at p≤0.05 on EGC than CPY, HATCH, EGY and SURV. Breed and village interactions were significant at p≤0.05 on RP, AA, DR, EGL, NBP and NIP. Therefore, productive and reproductive traits of indigenous chicken differ across different rearing systems, breeds and villages
- Allergen Management in Food Production
Session Introduction
Kalmi D. Ishmail
PhD, University of Ottawa, USA
Title: Evolution of food security involving a novel staple crop: T. radicans growth in temperate climates
Biography:
Dr. Ishmail has completed his PhD at the age of 31 years from the University of Ottawa and is beginning postdoctoral work at the same university. He has a special interest in seeds and legumes and has studied in the Stanton Lab.
Abstract:
We investigated a relationship between nutritional aspects and type of consumption in a dataset of living suidian species to provide a framework for making basic estimates of the range of growth styles evolved by T. radicans, a little-studied family of closely-related and leafy species native to central North America. Our results show that “primary” growth (i.e. main stalk) length (fprim) and total branch length (sum of the lengths of the fibre, ulna and seed pods in each stalk of a species) have ratios that differ significantly among four groups defined by their characteristic styles of growth. These ratios can be determined for extant species and are also predictive for ancestral varieties. This finding was supported using multivariate ordination analyses, with four wing elements based on four stalks that distinguish the four generally observed varieties within legumes of several general types (beans, peas, etc.). Among the variables we investigated, variant length is the most closely related to pod size, yet paradoxically it is the least useful predictor for nutritional style. This strongly suggests to us that the shape of the stalks rather than their length along is the key factor in total yield, which can approach 165 bushels per acre. Seed pod thickness (shape) must vary with beat strength, with weaker forces requiring less phloem. Finally, we show that by incorporating data from American pods, multivariate ordination analyses can be used to understand the evolving suilline styles dating back to early Mesozoic fossils.)
- Quality control & Management
Session Introduction
Olubunmi Agarry
Food microbiologist, University of Abuja
Title: Identification and Antimycotoxigenic Action of Lactic Acid Bacteria from Some Traditional Foods in Nigeria.
Biography:
Mrs Oyetola Moradeke is a Food microbiologist and is currently a Scientific Officer ans researcher from the Minisrty of Science and Technology, Health and Biomedical Science Department. She received her M.Sc. from the University of Abuja. Her publications reflect her research interests in Food Microbiology.
Prof. Agarry Olubunmi is currently working as Lecturer at the Microbiology Department, University of Abuja. Prof. Agarry Olubunmi received her Doctoral degree from the Federal University of Technology Akure. She worked at the University of Abuja and served as Head of Department, Director School of Remedial Studies, Associate Professor and Professor. Prof. Agarry Olubunmi has authored several publications in various journals and books. Her publications reflect her research interests in Food Microbiology. Prof. Agarry Olubunmi is serving as a member or fellow in American Society for Microbiology, Society for Applied Microbiology (SFAM), Nigerian Society of Microbiology, etc.
Abstract:
Screening for indigenous lactic acid bacteria from Nono (fermented cow milk) and Dawadawa (African locust beans) that possess inhibitory activity against Aspergillus niger, the causative agent of Aflatoxicosis was carried out. One milliliter (1ml) of nono and 1g of mashed dawadawa samples were serially diluted in ten folds and inoculated on MRS agar plates. Pure isolates obtained were assayed for their morphological, biochemical, molecular characteristics. Sugar fermentation test, growth pattern analysis at different pH, NaCl, temperatures and 16S rRNA sequencing using 27F/1492R primers were used for bacterial identification and characterization. Biochemical characterization revealed that isolates were Gram positive rods and cocci, catalase negative, homo and heterofermenters. Maximum bacteria growth was recorded after 96 h at 33oC and 37oC for both samples. All isolates grew in 4.5% and 6.5% NaCl and pH 4.5 and 9.6. Nucleotide sequence analysis identified these isolates as Lactococcus lactis, Lactobacillus plantarum, Lactobacillus fermentum, Lactobacillus helveticus, Leuconostoc citreum and Lactobacillus delbrueckii. Isolates were assayed for their antagonistic activity against aflatoxin producing Aspergillus niger using the Dual Culture method. Data obtained revealed a 16.6-53.3%, 6.6-50% growth inhibition of Aspergillus niger at 72 h and a 41.6-71.6%, 16.6-68.5% inhibition of fungal growth at 120h for all bacteria isolates obtained from Nono and Dawadawa samples respectively. For all isolates, the inhibitory action was highest after 3 days and was maintained by most isolate even after 5 days. The results of this study identified indigenous lactic acid bacteria as promising biological control agents for further testing against aflatoxicosis in food stuff.