Food and Bioprocess Engineering Unit Operations

Semester Taught - Fall

Catalog Description

Credits: 4

Design and analysis of thermal, freezing, evaporation, dehydration; and mechanical, chemical and phase separations processes as governed by reaction kinetics and rheology of food and biological materials.


ABE 3612, EML 3100, and CWR 3201

Course Objectives

  • Train students in the engineering design, testing and analysis of unit processing operations employed in the food, pharmaceutical, and biotechnology industries (sterilization, pasteurization, freezing/refrigeration, drying, evaporation, and fermentation, along with physical, chemical and phase separations).
  • Introduce students to the general approach for design and economic feasibility of an entire process line for a food, pharmaceutical or biotech manufacturing plant.
  • Enhance communication skills, and impart a sense of professional, ethical and societal responsibility gained through knowledge of contemporary issues.

Contributions of Course to Meeting the Professional Component for ABET

This course contributes 4 credit hours toward meeting the minimum 48 credit hours of Engineering Topics in the basic-level curriculum for the Bachelor of Science Degree in Agricultural and Biological Engineering.

Relationship of Course to Program Outcomes

From the list of (a) through (k) program outcomes listed below, this course addresses the following (a), (c), (d), (e), (f), (g), (h), (j) and (k). Of these, (a), (c), (d), (f), (g), (h), (j) and (k) are assessed.

ABET Program Outcomes

  • (a) Apply knowledge of mathematics, science, and engineering
  • (b) Design and conduct experiments, as well as analyze and interpret data
  • (c) Design a system, component, or process to meet desired needs
  • (d) Function on multi-disciplinary teams
  • (e) Identify, formulate, and solve engineering problems
  • (f) Understand professional and ethical responsibilities
  • (g) Communicate effectively
  • (h) Understand the impact of engineering solutions in a global and societal context
  • (i) Recognize the need for, and engage in life long learning
  • (j) Understand contemporary engineering issues
  • (k) Use the techniques, skills, and modern engineering tools necessary for engineering practice


Dr. Pratap Pullammanappallil
Office location: 203 Rogers Hall
Telephone: Work - 352-392-1864 x 203
E-mail: pcpratap@ufl.edu

Material/Supply Fees


Class Materials Required

Textbooks / Notes

  • Introduction to Food Engineering by Singh and Heldman, AP

  • Lecture Notes and Lab Manual, Florida Book Store, 1614 West University Avenue.

Recommended Reading

  • Principles of Fermentation Technology by Stanbury and Whittaker, PP.

  • Virtual Experiments in Food Processing by Singh and Erdogdu, RAR Press, Davis , CA

  • Handbook of Food Engineering by Heldman and Lund , Marcel Dekker

  • Food Process Engineering, 2nd ed. by Heldman and Singh, VNR/AVI.  

Course Outline

Topics Covered

  • Reaction Kinetics
  • Thermal Inactivation of Bacterial Spores
  • Flow of Liquids (Fluid Transport and Flow Behavior)
  • Heat Transfer/Heat Exchangers
  • UHT Sterilization and Pasteurization
  • Thermal Processing of Shelf-stable Foods and Pharmaceuticals
  • Radiation Treatments
  • Freezing and Refrigeration
  • Dehydration and Psychrometrics
  • Evaporation/Concentration
  • Mechanical Separations (sedimentation, centrifugation, filtration)
  • Chemical Separations (Solvent Extraction)
  • Phase Separation (Distillation, Fractionation Columns)
  • Fermentations
  • Process Design / Process Economics

Laboratory Exercises

  • Reaction Kinetics
  • Fluid Transport and Flow Behavior
  • Pilot Plant Flash Pasteurizer - Part 1
  • Pilot Plant Flash Pasteurizer - Part 2
  • Retort/Autoclave Sterilization
  • Electron Beam, X-Ray, and Gamma Ray (Field Trip)*
  • Steam, Electricity, Cogeneration (Field Trip)
  • IQF, Plate, Cryogenic Freezing
  • Cabinet, Drum, and Spray Drying
  • Single and Multi-effect, TVR, Evaporator (Field Trip)*
  • Sedimentation, Centrifugation, Filtration, Membrane Separations
  • Fermentation and Anaerobic Digetsion (SEBAC Pilot Plant Field Site Trip)*
  • Solvent Extraction and Distillation

* Field trip reports include discussions of societal and environmental impacts, as well as related contemporary issues identified in current news media.

Attendance and Expectations

Attendance at all lectures, labs, and field trips is expected from all students at all times. Lab reports and trip reports are due within one week of when assigned.

Cell phone and musical device use is not allowed during class.


A C- will not be a qualifying grade for critical tracking courses.  In order to graduate, students must have an overall GPA and an upper-division GPA of 2.0 or better (C or better).  Note: a C- average is equivalent to a GPA of 1.67, and therefore, it does not satisfy this graduation requirement.  For more information on grades and grading policies, please visit: https://catalog.ufl.edu/ugrad/current/regulations/info/grades.aspx

Grading Scale
A 91-100%
B 81-90%
C 71-80%
D 61-70%
E <61%
Grading MethodABE 4812cABE 5815c
Graduate Project   20%
Exam 1 25% 20%
Exam 2 25% 20%
Final Exam 25% 20%
Lab Reports 25% 20%

No make-up exams will be given except for valid medical reasons or unless prior arrangements have been made.

Academic Honesty

In 1995 the UF student body enacted an honor code and voluntarily committed itself to the highest standards of honesty and integrity. When students enroll at the university, they commit themselves to the standard drafted and enacted by students.

The Honor Pledge: We, the members of the University of Florida community, pledge to hold ourselves and our peers to the highest standards of honesty and integrity.

On all work submitted for credit by students at the university, the following pledge is either required or implied: "On my honor, I have neither given nor received unauthorized aid in doing this assignment."

Students should report any condition that facilitates dishonesty to the instructor, department chair, college dean, Student Honor Council, or Student Conduct and Conflict Resolution in the Dean of Students Office.

(Source: 2012-2013 Undergraduate Catalog)

It is assumed all work will be completed independently unless the assignment is defined as a group project, in writing by the instructor.

This policy will be vigorously upheld at all times in this course.

Accommodation for Students with Disabilities

The Disability Resource Center coordinates the needed accommodations of students with disabilities. This includes registering disabilities, recommending academic accommodations within the classroom, accessing special adaptive computer equipment, providing interpretation services and mediating faculty-student disability related issues.

0001 Reid Hall, 352-392-8565, www.dso.ufl.edu/drc/  

Software Use

All faculty, staff and students of the university are required and expected to obey the laws and legal agreements governing software use. Failure to do so can lead to monetary damages and/or criminal penalties for the individual violator. Because such violations are also against university policies and rules, disciplinary action will be taken as appropriate.

UF Counseling and Career Services

Resources are available on-campus for students having personal problems or lacking clear career and academic goals which interfere with their academic performance. These resources include:

  1. University Counseling and Wellness Center, 3190 Radio Road, Gainesville, FL 32611
  2. Career Connections Center, Reitz Union, 392-1601, career development assistance and counseling.