|
About Us
|
Faculty
|
Staff
|
News & Events
|
|
|
About the Department
|
|
| |
|
|
Contact Information
Mission
Facilities
History
|
|
|
|
|
|
|
|
|
MISSION
|
|
|
|
The mission of the Department of Food Science and
Technology is to be a leader in contributing to food quality, safety,
marketability, and availability through excellence in teaching,
research and extension. The principal supporting disciplines are
chemistry, biochemistry, economics, engineering, microbiology, nutrition,
and physics.
|
|
Food science and technology is defined as the application of science
and engineering to the processing, preservation, packaging, distribution,
and utilization of foods. The objectives of food science and technology
are to elucidate the chemical, physical and microbiological properties
of foods, and to apply this knowledge to the efficient utilization
of raw ingredients for economical development and improvement of
processes and packaging, leading to products of high quality and
nutritional value. Food science and technology is the key to the
conversion of raw materials into a wide variety of safe, wholesome,
nutritious and economical food products, thus contributing in an
important manner to the well being, standard of living, and progress
of humanity.
|
|
The major mechanisms for accomplishing the mission of the Department
of Food Science and Technology are:
- Providing quality education and training in food science and
technology at the undergraduate and graduate levels in order to
supply professional personnel to meet the needs of educational
and research institutions, industrial firms, and government agencies.
- Conducting research and establishing new concepts which will
provide consumers with safe, nutritious, economical and acceptable
food products, consistent with minimal environmental impact.
- Conducting extension activities which (a) bring food science
and technology educational and research information to the attention
of consumers, producers, food processors, and federal and state
agencies including various administrative and service units of
Virginia Polytechnic Institute and State University; and (b) provide
an avenue for the Department to receive industry and consumer
input on research and educational needs.
|
|
|
|
FACILITIES
|
|
|
Food Science and Technology Building
The Department of Food Science and Technology is housed in a separate 34,000
square-foot building, and is well-equipped with a variety of analytical
instrumentation, equipment, and research-scale pilot plant facilities
for use by students. Virginia Tech faculty and staff are extremely willing to work
with students from departments other than their own by lending
equipment as well as offering their time and expertise.
Food Analysis Laboratory
Facilities for enzyme research, flavor analysis, and protein, lipid, and carbohydrate research are available. The department has a supercritical fluid extraction system for separation technology and computer-interfaced analytical instrumentation. Separation techniques including gas, paper, and liquid chromatography, GC, and HPLC are available. UV spectrophotometers, refractometers, mass spectrometers, infrared spectometers, and spectrofluorometers are available as detection devices. Fraction collectors and high speed refrigerated centrifuges are used for physical separations. Color difference meters and viscometers are utilized to quantitate physical characteristics of samples.
Microbiology Laboratories
Food microbiology research and teaching facilities include five well-equipped laboratories. The Department is equipped for working with CDC class three pathogens. Virus research is performed in conjunction with the College of Veterinary Medicine. Facilities for anaerobic microbiological identification and research are located in two laboratories, and thermal-processing microbiological facilities are on site. Rapid analytical equipment includes a Bactometer Microbial Monitoring System, , luminator, Epifluorescent microscope, Phase contrast, and light and dark field microscopes. Cultures are grown in programmable, constant temperature incubators.
Packaging and Processing Pilot Plant
Packaging in both rigid and flexible materials and modified atmosphere and vacuum is available. Facilities include a 5,000-square-foot pilot plant with processing equipment for thermal processing, retort sterilization, size reduction, spray drying, freeze-drying, dehydration, and pasteurization. Equipment is available for aseptic processing by UHT and for supercritical fluid extraction. Also available to students are facilities for nondestructive testing of packaging.
Research Winery and Enology Laboratory
The facilities include a research winery equipped with several crushers, a thin-layer and cake press, a dejuicing system, temperature-controlled decanter and fermenting tanks, four cold rooms, and a wine library. A separate grape and wine research laboratory contains a computer-assisted gas chromatographic system, HPLC, UV spectrophotometer, nephelometer, and conductivity meters.
Sensory Evaluation Laboratory
The sensory evaluation laboratory is equipped with eight sensory panel booths, a food preparation laboratory, and is supported with a Sensory Information Management System. Sensory analysis for consumer, difference, and descriptive testing is available for research and industry support.
Dairy/Beverage Processing Pilot Plant and Analytical Support Laboratory
Facilities for manufacture of fluid milk and beverages, cheese, yogurt, butter, and ice cream are available in the pilot plant. The lab is equipped with pilot plant scale pasteurization systems including a plate heat exchanger and vat unit for standard high temperature short time (HTST) and vat pasteurization of fluid food products. A tubular heat exchanger (Microthermics, Inc. Lab-25) provides flexibility for both HTST and ultra-high temperature (UHT) pasteurization. In addition, out-of-line separation and homogenization equipment allow for design of process to accommodate research needs for milk and beverage processing. Shelf-life studies are conducted in cold rooms at 4°and 7°C.
Pilot plant scale cheese processing equipment (50-gallon vats, shredders, tumbler) is frequently used for process training and for research on fresh cheeses. Batch ice cream freezers, and fermentation vessels provide product for research in formulation, sensory and rheological characteristics. Analytical and laboratory equipment for assessment of microbial and chemical quality, flavor, emulsion stability, culture viability, protein, lipid, carbohydrate composition, and drug residue detection are readily available.
Muscle Foods Processing Room and Meat Chemistry Laboratory
The facilities at Virginia Tech include a pilot plant that has an abattoir, meat processing room with a variety of particle-size-reduction equipment, mixers, massagers, stuffers, smokehouses, vacuum packagers with gas flush capabilities, coolers, freezers, and a cookery. To support the research and teaching efforts in muscle foods, the department has a chemistry laboratory that includes instrumentation for gel electrophoresis apparatus, a laser for sarcomere determinations, rapid AOAC Foss-Let Fat analyzer, Soxhlet extraction apparatus, and micro- and macro kjeldahl. Other instrumentation includes: an Instron Universal testing machine for instrumental methods of product assessment, a Minolta chroma meter, and Shimadzu reflectance spectrophotometry for pigment analysis.
Virginia Seafood Agricultural Research and Extension Center
Seafood research is conducted both on the Blacksburg campus and at the off-campus Virginia Seafood Agricultural Research and Extension Center, located in Hampton, Virginia. The on-campus research and teaching facilities include modern, well-equipped laboratories and pilot processing facilities for processing, pasteurization, and packaging of seafood. Seafood research is interactive with the areas of microbiology, sensory analysis, and chemical analysis. The VA Seafood AREC has fully equipped microbiological and chemical laboratories, as well as pilot processing facilities. The VA Seafood AREC is located near seafood processing plants and these facilities are often used in research.
|
|
|
University Libraries
The
VPI & SU library system is pioneering the "electronic
library" system. The library system at VPI & SU is
composed of a main centralized library and four branch libraries.
The fully computerized library system contains 1.9 million bound
volumes, nearly 6 million microforms, and has a subscription
list to over 17,000 journals and periodicals. Searching the
university library collection is easily done at all locations
through the on-line computerized VPI & SU Library System,
an integrated system used by more than 75 other libraries around
the world. Additional special features of the library include:
- easy access
to collection listings by students and faculty at all online
computer terminals on campus and home locations through
the electronic village connection;
- online searching
of numerous databases imperative to agriculture and science
research OGs including FirstSearch, InfoTrac, Grateful
Med, and Agricola;
- connection
through the library homepage to library services such as
reference questions, interlibrary loan, and book renewals;
- availability of the media center featuring computer labs, videos, films,
cassettes, and recordings.
|
|
|
|
Information Systems and Computing
Virginia Tech has an established national reputation related to innovative
and effective uses of computers and information technologies.
The university goal is to continue providing for the development
and maintenance of a robust computing infrastructure. The University
is sitting in the center of the nations pioneer "Electronic
Village", where the business community and personal homes
are linked together through the Internet. This has linked the
university to the community and to the world and enhanced the
computing and communication technologies within the University.
Virginia Tech is a leader in the delivery of instructional, research
and extension services through computer technologies. The central
computing support includes: 1) high-end computing facilities
available for research at VPI & SU through a mix of servers,
IBM scalable Parallel Processor (SP2) with 14 processors, two
IBM Symmetric Multiprocessor (SMP) servers, Intel Paragon XP/S-7,
a distributed memory parallel computer with 100 general purpose
compute nodes, two RS/6000 (models 560 and 550), over 500 SUM,
IBM, HP and DEC Workstations owned and maintained by departments
and colleges, and a CAVE (SGI Onyx and Pyramid projection system)
and advanced computing laboratory; 2) campus-wide e-mail and
on-line library; 3) access to university data networks from
every office, residence hall and off-campus (over 8,000 computers
on campus); and 4) formal training for faculty and staff to
increase operational efficiency and effectiveness.
New Media Center
Support services to faculty and students for development in teaching,
research and public service activities is available through
VPI & SUs Media Services. Examples of services include
consultation on design and production of media materials which
can be used to increase effectiveness of teaching and research,
improve communications and broaden learning opportunities for
students.
Statistical Consulting Center
The University's Statistical Consulting Laboratory in the
Department of Statistics is one of the oldest in the nation.
It supports the research mission of the university by providing
annually over 3,000 consultant-hours of service to over 65 university
departments and state agencies. Consultants are faculty and
advanced grad students in statistics. Services include experimental
design, biostatistics, response surface models, environmental
monitoring, report writing, proposal preparation and others.
A variety of statistical programs, including SAS, SPSS, and
JMP are utilized. Basic services are free to researchers and
students at the university with charges being assessed if extensive
services (difficult or time-intensive analyses, report writing,
data management, etc.) are required.
|
|
|
HISTORY
|
|
|
|
|
Dr. Anthony Lopez (left) and Associate Dean Horne of the College of Agriculture
(right) award the first Virginia Tech student to receive an IFT scholarship in 1962.
|
|
Before the Food Science and Technology
Department was created in 1968 by the VPI&SU Board of Visitors,
there were teaching, research and extension programs in
that area in the Departments of Horticulture, Dairy Science, Animal
Science and Poultry Science,
all in the College of Agriculture. In the mid-1950's and
early 1960's there were eight full
time faculty positions in those departments, whose
responsibilities fell essentially in the area of Food Science and Technology. There were two positions
in teaching and research in the Departments of Horticulture, Dairy
Science, Animal Science, and one position in Poultry Science. The
faculty in all those departments had active research programs in
the Food Science and Technology area which were geared to assist
the food industries in Virginia. There was a functioning food industry
advisory committee to the Food Technology section of the Department
of Horticulture.
In 1957 the Department of Horticulture
established a Food Technology Option in its teaching program. That
option included undergraduate courses taught by Dr. Lopez aided
by Professor Wood in Food Processing, Food Chemistry, and Food Analysis, and in Sterilization in
Food Technology and Food Packaging. Later a course in Fruit and
Vegetable Processing taught by Dr. Cooler was introduced. Also included in the Food Technology
Option were courses in Dairy Processing, Meat
Processing, Poultry Processing, and Agricultural Engineering Fundamentals.
|
|
|
In 1959 the Institute of Food Technologists,
on the basis of the above mentioned Food
Technology Option, recognized the Virginia Polytechnic Institute
as having a program in Food
Science and Technology that complied with the recommendations
of IFT for programs eligible to receive IFT scholarships. Two
IFT undergraduate scholarships were
awarded to students in the Option in the early
1960's. Graduate programs leading to both M.S. and Ph.D. degrees
in the Food Technology Option
of the Department of Horticulture were also instituted.
The research facilities for Food
Science and Technology in the 1950's to mid-1960's included a poultry
processing plant, a meat slaughtering facility, a fruit vegetable
processing laboratory, food chemistry and food analysis laboratories.
The 5,000 sq. ft. fruit and vegetable processing laboratory was
finished in 1965. It was made possible by a special appropriation
by the Virginia Legislature which was spearheaded and strongly supported
by food processors located in the Eastern Shore of Virginia, and
by Col. Adams, then a member of the Virginia Senate. The
equipment in the fruit and vegetable processing plant was in part
acquired with Virginia Agricultural Experiment Station funds, and
in part donated by in- and out-of-state industry through faculty initiatives.
Again in the mid-1960's the Virginia
Legislature appropriated funds for constructing
a second addition to the Food Technology building to house a dairy
processing research plant laboratory for food science research in
the Department of Horticulture and Animal Science. 3 Classrooms,
offices to house faculty, and research laboratories for poultry processing were also constructed.
In 1966 Dr. Lopez was asked by the
Dean of the College of Agriculture Wilson Bell,
to chair an interdepartmental committee charged with the responsibility
of designing a tentative floor plan for an addition to the then
existing pilot plant and laboratory
facilities. The objective was to bring together the faculty and
staff involved in that area
in the Department of Horticulture, Animal Science, Dairy Science
and Poultry Science. The floor plan developed was the plan essentially
used when the facility was built. The Virginia Farm Bureau and the
Virginia Division of Industrial Development were the principle supporters
of this second Virginia Legislature appropriation for the construction
funds for Food Science and Technology facilities at VPI&SU.
The Department was formed in 1968
by combining a group of faculty with food processing
interest from the Departments of Horticulture, Dairy Science, Animal Science and Poultry Science. The
physical facilities included in the Department were four pilot plants
(meats, poultry, dairy, and fruit and vegetable processing) and
a food analysis laboratory. A dairy technology area, laboratory,
and office wing of this building were finished in 1970, except for
the teaching laboratory, the food biochemistry laboratory and office,
which were finished in 1975 and 1977.
The meat pilot plant was remodeled in 1972 to conform to state regulations for establishments processing meat.
These facilities are located in a 34,000 square
foot Food Science and Technology building. In 1994, a faculty position
in wines was added from the
Department of Horticulture along with an office, lab and
small winery pilot plant. Research laboratories in the Department
are well equipped with instruments
routinely used in food science research. Special instrumentation
includes gas and liquid chromatographic systems, atomic absorption
spectrometer, microcomputers, and facilities for anaerobic microbiological studies. The pilot
plants need to be renovated and more extensive state-of-the-art
equipment installed. In order to meet this need, the Department
has prepared a plan for renovation of the current pilot plants and
the construction of a muscle foods processing facility.
The first Department Head was Dr.
E.N. Boyd, who came to Virginia Tech from the
USDA in Washington in 1968. He was succeeded in 1971 by Dr. R.V.
Lechowich who was previously at Michigan State University. Dr. Lechowich
resigned in 1981 and Dr. William
Collins was Interim Department Head until Dr. Kent Stewart came
in April, 1982. Dr. Stewart returned to teaching and research in
1985, at which time Dr. Merle Pierson became Department Head. Dr.
Bill Eigel became Interim Head in 1994 when Dr. Merle Pierson returned to teaching
and research. Dr. Eigel was succeeded in 1995 by Dr. Cameron R. Hackney.
Dr. Susan Sumner succeeded Dr. Hackney in October 2000.
When first organized, the Department
had nine FTE faculty positions, including the
Department Head. These positions were 5.5 FTE in research, 2.25
FTE in.teaching and 1.25 FTE in extension. By 1970 the Department
had gained three more FTE faculty positions. Of these, 2.15 positions
were in extension, 0.6 in research, and 0.25 in teaching. Between
1973 and 1977 four more faculty positions were added to the Department,
of which 3.0 FTE faculty positions were in
extension, 0.5 in research, and 0.5 in teaching. By 1977, the Department
had a total of 16 faculty members. At the end of 1990, the Department
had 12.25 faculty positions,
2.2 FTE teaching positions, 6.48 FTE research positions and
3.57 extension positions. A closely
related faculty position (Superintendent/Research Scientist) is
not included in this total since it is officially allocated to the
Seafood Station.
The "Plan to Serve Virginia
Agriculture, Human and Natural Resources" has fifteen positions
allocated to Food Science and Technology. The departmental plan
was developed after careful consolation with industry, government
representatives, and our own faculty. Our program is certified by
the Institute of Food Technologists, an important aspect in the
placement of students. In addition,
we wish to continue the strong interaction among the teaching, research
and extension missions of this department. The close relationship
between extension and research has allowed for quick technology
transfer. In addition, industry interaction enhances the teaching
program because faculty have practical examples for students, another
strength of this department. Our strong relationship with industry
allows us to get technology out faster than most other universities.
We have examined programs at peer institutions and looked at areas
where the Department of Food Science and Technology at Virginia
Tech could become a national leader. We have established national
leadership in several areas. Our seafood program is rated as one
of the best is the country. We are a national leader in the food
safety area. The department is nationally recognized in the area
of meat tenderness. As we looked to the future, we concentrated
on unique or strong programs that have the potential to move to
excellence. Areas that compliment our current program and add strength
include beverage technology and value added further processing.
The department currently has fourteen
faculty members with programs covering both the basic core areas
(food chemistry, engineering, processing and microbiology) and specific
commodities (muscle foods, dairy and fruit and vegetable foods).
Rather than cover a wide breadth of commodities and disciplines,
our emphasis is on areas of critical need to Virginia and where
faculty expertise can make the greatest positive impact; specifically,
these are muscle foods, dairy foods, wines, food processing, food
microbiology and food chemistry.
|
|