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Catalog Data:
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GID 432 Food Quality Control
Laboratory (0-3) 1.5
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Laboratory experiments for
proximate analysis of foods (moisture, ash, fat, protein, sugar, starch),
analysis of food additives (colorants, nitrite, etc.) and quality tests
(peroxide, acidity, etc.), application of chemical, physical, instrumental,
chromatographic and enzymatic methods used in food quality control. Course is supported with projects.
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Prerequisites:
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None
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Language:
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Turkish
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Textbook:
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Laboratory manual
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Reference Books:
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AOAC, 1990. Official Methods Of Analysis. 15th
Ed. Association of Official Analytical Chemists, Washington D.C. FAO, 1986. Food Analysis: General Techniques,
Additives, Contaminants and Composition. No:14/7. Rome,
Italy
Meloan, C.E. and Y. Pomeranz, 1980. Food
Analysis Laboratory Experiments. 2nd Ed. The AVI Publ. Co. Inc., Westport
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Course Objectives:
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Develop an ability to perform analytical methods;
demonstrate an understanding of handling of chemicals and safety procedures
in a laboratory; design an experiment and report data in a scientific format;
learn how to write a laboratory notebook; justify the results according to the current regulations
and standards; to design a food quality
control laboratory; gain an ability to work
in teams and develop abilities for effective
presentation and discussion of ideas.
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Topics :
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week
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Safe
handling rules and procedures in the laboratory, waste management, ethical
behaviur, orientation of students to laboratory materials and equipments.
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1
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Laboratory
practice - I Moisture analysis (oven method,
vacuum-oven method, distillation method); Ash analysis (oven method, water
soluble/insoluble ash analysis, alkalinity test of water soluble
ash)
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1
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Fat
content analysis (Soxhelet and Gerber methods); Fat analysis (peroxide value
and fat acidity analysis)
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1
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Protein
analysis (Kjeldahl method)
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1
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Sugar
analysis (Lane-Eynon method and Brix determination with Refractometry);
Starch analysis (Polarimetric method)
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1
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Water
soluble synthetic organic colorant analysis (Paper chromatography )
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1
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Phosphatase
activity analysis in milk (Spectrophotometric method)
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1
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1st
project report submission, 2nd project presentation of study plan,
and discussion among teams
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1
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Laboratory practice - II
Preparation of solutions & design of experiments
Performing of analysis
Designing a food quality control
laboratory
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4
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2nd
project Presentations and report submission
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1
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Laboratory
Experiments:
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16 laboratory experiments
and students’ associated experiments as stated above.
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Class Schedule :
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Classes are held in one session per week; 3 laboratory hours in one
session.
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Relation of course to program objectives: The four
credit hours of this course were reduced to three hours in the new
curriculum.
Strategies and Actions
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Student Learning Outcomes
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ABET
Criterion 3 (a-k) & FdE (l)
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Program
Objectives
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Assessment
Methods / Metrics
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A laboratory handbook is provided.
Laboratory experiments and projects are based on a
syllabus given in the beginning of semester.
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Develop an ability to design and to perform food
analysis experiments.
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a,
b, c, k
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1,
2
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Instruments
G, J, L, M, N, O
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Teams are formed with a max of 6 students in the
first week by the instructor.
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Share credit for success with others.
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d
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2
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Instruments
G, P
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Laboratory safety rules are presented to the
students at the first week. Students
are then asked to achieve at least 90% of a safety quiz in order to start
laboratory experiments in the second week.
Students are required to present MSDS and to state special safety
precautions in the lab report for each experiment if necessary.
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Demonstrate a basic knowledge of handling of
chemicals and safety procedures in a laboratory and develop an understanding
of the effects of those practices on human health and environment.
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f,
j
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3
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Instruments
G, J
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The first 6 weeks of experiments are based on a
specific food product provided to each team.
Each team presents a written report by evaluating the results of the
analysis on the basis of requirements of legislation, labeling, exporting,
etc., or of detection of adulteration.
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Demonstrate an ability to use knowledge from various
courses in an integrate manner.
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c,
j
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1,
3
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Instruments
G, J, O
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Each student is required to write a laboratory
notebook, which is collected after the completion of experiments for correction. Those notebooks are returned back to
students and they continue to write analysis of the 2nd project.
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Demonstrate an ability to write a laboratory
notebook.
Take corrective action based on feedback from
others.
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b,
c, g, i, k
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2,
4
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Instruments
G, M
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Each student is required to prepare a flow chart of
experiment each week.
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Set goals to accomplish tasks on time.
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k
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1
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Instruments
G, M
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Laboratory performance is evaluated on the basis of
flow chart preparations, safety considerations, and laboratory notebook
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Demonstrate responsibility for creating own learning
opportunities
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i
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4
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Instruments
G, M
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A 2nd project based on a scenario
is assigned to students; Students design and conduct proper experiments to
solve their problem on the basis of scenario and design a food quality
control laboratory for their food product
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Handle unknowns or open-ended questions effectively.
Demonstrate an ability to integrate knowledge
obtained through other courses and effectively use to design a food quality
control laboratory.
Clarify task requirements and expectations as
needed.
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b,
c, d, e, l
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1
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Instruments
G, L
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Teams present their 2nd project both
orally and in written format and their oral performance are recorded on
video, which is presented later to the students to learn from their mistakes.
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Plan and deliver presentations effectively using
multi-media techniques.
Learn from mistakes and practices and continue
improvement
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d,
g, i
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4
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Instruments
G, N, O
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Team performance is evaluated by oral and written
presentations followed by grading the instructors.
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Organize written materials in a logical sequence.
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d,
g
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2
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Instruments
G, N, O
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Team members evaluate each other’s contribution
critically and evaluate their working attitudes and professional and ethical
responsibility.
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Assess one’s performance critically and accurately.
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d,
f
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2
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Instruments
G, P
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Individual performance is evaluated on the basis of
final examination
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Demonstrate an ability to learn independently.
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i
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4
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Instruments
G, J
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Typical
Evaluation:
1st
Project evaluation: 20%
2nd
Project evaluation: 30%
Quizzes:
10%
Final exam: 40%
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Prepared By: Prof. Dr. Dilek
Boyacıoğlu, Ass. Prof. Dr. Beraat Özçelik
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Date : March 16, 2002
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