THE UNIVERSITY OF NEW SOUTH WALES SCHOOL OF CHEMICAL ENGINEERING FOOD2320 Food Microbiology FOOD2627 Food Microbiology Final Examination November 2013 Time allowed: THREE (3) hours Total number of questions: THREE (3) Answer all three questions Total marks: 60 All questions are of equal value (20 marks) This exam will contribute 40% to the final mark for the subject This paper may be retained by the candidate Answers must be written in ink. Except where they are expressly required
Premium Bacteria Microbiology Fermentation
INTRODUCTION The excessive consumption of fossil fuels‚ particularly in large urban areas‚ has greatly contributed to generation of high levels of pollution. There is a need for environmentally sustainable energy sources to find a viable and long-term substitute for liquid petroleum. As a step to solve this problem‚ the use or addition of biofuels to gasoline‚ which reduces emission of carbon monoxide and unburned hydrocarbons that form smog‚ has widely been enforced in recent years (Wyman
Premium Yeast Ethanol fuel Ethanol
ferment some foods. Ascomycota fungi are the yeasts used in baking‚ brewing‚ and wine fermentation‚ they are important in cell biology‚ genetics‚ and producing penicillin. Ascomycota are characterized by its sac like structure the ascus‚ which contains ascospores where sexual reproduction takes place outside the structure. Asexual reproduction is conidia chains that break apart and float in the air or from budding. They are either single celled as yeast or filamentous as hyphae. Ascomycota play a
Premium Fungus Yeast Reproduction
fermentation of the apple and carrot juices‚ and compare their rates to each other. Introduction: Procedure: A 5.00 ml of apple juice was taken in a clean 150 ml conical flask and diluted with 50 ml of distal water. Then‚ 2.00 grams of Baker’s yeast and 5.00 ml of solution of Pasteur’s salts were added to the above conical flask. The content of flask was shacked well and maintained the temperature of the reaction mixture between 35-40 ̊ c by using hot water path. After that‚ 10 drops of the reaction
Premium Fermentation Juice Pasteurization
REPUBLIC OF THE PHILIPPINES LAGUNA STATE POLYTECHNIC UNIVERSITY SANTA CRUZ‚ MAIN CAMPUS A.Y. 2014-2015 Santol Vinegar (Sandoricum koetjape) SUBMITTED BY: Monica A. Esguerra BSIT-3A/FOODS SUBMITTED TO: PROF. NESTOR PASAHOL INSTRUCTOR Chapter 1 THE PROBLEM AND THE SETTINGS This chapter contains the Introduction‚ Background of the Study‚ the Theoretical Framework‚ Conceptual Framework‚ Statement of the Problem‚ Hypothesis‚ Significance of the Study‚ Scope and Limitation of
Premium Acetic acid Vinegar Ethanol
Publisher: Panima Publishing Corporation. Biotechnology:1990 3. Stansbury PF‚ Whitaker A .Pergamon Press. Principles of fermentation technology . 1995 4. Simon A‚ Lengyl Z. Process for the preparation of fermentation media suitable for culturing yeast for animal consumption and microspores and/or for the production of protein from vegetable waste matter. United States patent‚ Jan 6‚ 1981. Patent No.-4‚243‚685 5. Soni SK‚ Bansal ‚ Soni R. Standardization of conditions for fermentation and maturation
Free Bacteria Metabolism Carbon dioxide
Pak. J. Bot.‚ 44(1): 169-176‚ 2012. OPTIMIZATION OF DILUTE ACID PRETREATMENT USING RESPONSE SURFACE METHODOLOGY FOR BIOETHANOL PRODUCTION FROM CELLULOSIC BIOMASS OF RICE POLISH ZAHID ANWAR1‚ MUHAMMAD GULFRAZ1‚ MUHAMMAD IMRAN1‚ M. JAVAID ASAD1‚ AFTAB IQBAL SHAFI1‚ PERVEZ ANWAR1 AND RAHMATULLAH QURESHI2‚* 2 1 Department of Biochemistry‚ Pir Mehr Ali Shah Arid Agriculture University‚ Rawalpindi Department of Botany‚ Pir Mehr Ali Shah Arid Agriculture University Rawalpindi‚ Pakistan. Abstract
Premium Cellulose Lignin Yeast
running head: UNIT 10. ASSIGNMENT Environmental Microbiology With so much advertising for various antibacterial products‚ many people have gotten the impression that all bacteria are harmful and that maybe the Earth would be better off if all bacteria were eliminated. What would life be like in a bacteria-free world? Bacteria help decay materials and put vitamins and minerals‚ and gases into the atmosphere. Without them the world would be able to produce little food. Bacteria are woven into
Premium Milk Bacteria Microbiology
aspergillosis.5 Aspergillosis. A disease cause by Aspergillus species‚ marked by inflammatory granulomatous lesions in the skin‚ ear‚ orbit‚ nasal sinuses‚ lungs‚ and sometimes bones and meningitis.6 Candida albicans. It is a diploid fungus (a form of yeast)‚ which is capable of mating but not of meiosis‚ and a casual agent of opportunistic oral and genital infections in humans.7 Candidiasis. This refers to the infection by a yeastlike fungus that invades mucous membrane and sometimes skin in various
Premium Yeast Bacteria Fungus
WTHESIS STATEMENT: “BIOCONVERSION OF WATER HYACINTH (EICHHORNIA CRASSIPES) TO ETHANOL.” 1. INTRODUCTION Water hyacinth (Eichhornia crassipes) is a free-floating or rooted in mud plant or weed which can totally cover fresh water lakes‚ harbors‚ and other essentially relatively occluded fresh water bodies. It is a fast growing permanent aquatic plant that are extensively scattered all throughout the world. This tropical plant can be the reason for the infestation over large areas of water resources
Premium Enzyme Cellulose Ethanol