Engineering

Doctor of Philosophy in Agricultural Processing Engineering

The Doctor of Philosophy in Agricultural Processing Engineering is a doctoral programme focused on advancing research in post-harvest technology, food processing engineering and agricultural value addition. Offered at Kenyan universities including JKUAT and Egerton University, the programme produces scholars capable of developing engineering solutions to reduce post-harvest losses and improve food processing in Kenya and East Africa.

Students engage with advanced topics in food process engineering, post-harvest technology, thermal processing, food packaging engineering, quality control systems, process optimisation and research methods. The curriculum emphasises original research that develops processing technologies appropriate for Kenyan agricultural products, including cereals, dairy, fruits and vegetables.

Kenya's Big Four Agenda prioritises food security and manufacturing, with agricultural processing identified as a key growth area. Post-harvest losses in Kenya are estimated at 30 per cent for perishables, creating urgent demand for processing engineering expertise. The programme supports Kenya's goal of increasing value addition in agriculture.

Teaching is delivered through coursework, laboratory sessions and supervised research. Students design and test processing equipment, conduct food processing experiments and develop quality control protocols. The programme is offered full-time with a minimum duration of three years.

Graduates pursue careers as university professors, food processing engineers, post-harvest technology researchers, quality assurance managers and processing plant consultants. They work in universities, food processing companies, KALRO, Kenya Bureau of Standards and agricultural development organisations.

The programme is ideal for individuals with backgrounds in agricultural engineering, food science or mechanical engineering who wish to contribute original research to agricultural processing technology.

Duration: 3-4 years
Public, up to: Ksh 392,000
Private, up to: Ksh 150,000
Job market: High

The programme

What you study, how long it takes, and how it is delivered.

Practicalities

Study mode: Full-time, Part-time
Attachment: 0 months
Average class: 3 students
Award: PhD

What you study

10 subjects

Food Process Engineering
Post-Harvest Technology
Thermal Processing
Food Packaging Engineering
Quality Control Systems
Process Optimisation
Research Methods in Engineering
Food Safety Engineering
Drying and Dehydration Technology
Cold Chain Engineering

Modules

8 in the programme

Advanced Food Process Engineering
Year 1Semester 13 creditsCore
Engineering principles of food processing operations, exploring cutting-edge developments, theoretical frameworks, and research methodologies at the forefront of the discipline.
Post-Harvest Technology
Year 1Semester 23 creditsCore
Technologies for reducing post-harvest losses, covering technological tools, digital platforms, and information systems relevant to contemporary research and professional practice.
Thermal Processing and Preservation
Year 1Semester 33 creditsCore
Heat transfer, pasteurisation and sterilisation engineering, covering theoretical foundations, practical methodologies, and contemporary research developments relevant to doctoral study in this area.
Food Packaging Engineering
Year 2Semester 13 creditsCore
Packaging materials, design and shelf-life extension, covering engineering principles, design methodologies, and their application in solving complex technical problems.
Quality Control and Food Safety
Year 2Semester 23 creditsCore
Engineering aspects of food quality and safety systems, covering quality assurance principles, control methodologies, and their application in professional standards.
Research Methods in Engineering
Year 2Semester 33 creditsCore
Research design and methodology for engineering research, covering quantitative and qualitative approaches, data collection techniques, and analytical frameworks relevant to doctoral-level.
Departmental Seminars
Year 3Semester 13 creditsCore
Research presentations and peer review of doctoral work, providing a platform for doctoral candidates to present research findings, engage with peer feedback, and explore contemporary debates in.
Thesis Research
Year 3Semester 26 creditsCore
Doctoral thesis research and dissertation writing, involving original research, literature review, data analysis, and the production of a doctoral dissertation contributing new knowledge to the.

Specialisations

Thermal Processing
Engineering of heat-based food preservation processes
Process Optimisation
Optimising food processing operations for efficiency
Food Packaging
Packaging engineering for food products
Post-Harvest Technology
Technologies for handling and storing agricultural produce

A day as a student

A typical day involves designing and testing food processing equipment in engineering laboratories, conducting thermal processing experiments, analysing process data, reviewing engineering literature, attending research seminars, and meeting with supervisors to discuss experimental results and thesis progress.

The trade offs

In its favour

Kenya's Big Four Agenda prioritises food processing and manufacturing
Research directly addresses post-harvest losses and food security
Strong industry demand from food processing companies

Against it

Requires access to processing laboratories and equipment
Research can be expensive due to materials and equipment
Limited number of supervisors in processing engineering

What it costs

Tuition at both ends of the market, and how to pay for it.

What it costs, and where

Against 332 engineering courses

Public170k to 392k

170k at Jomo Kenyatta University of Agriculture and Technology392k at University of Nairobi

Private120k to 150k

120k at Strathmore University150k at Mount Kenya University

Annual tuition in Kenyan shillings, rounded. The upright tick is the median for this field, so a bar sitting entirely to its right is an expensive programme by the standards of its own subject.

The fine print

JKUAT 170,167/yr (kenyaeducationguide). MKU 150,000/yr (mku.ac.ke). UoN, Strathmore unverified.

HELB provides postgraduate loans. DAAD offers scholarships for postgraduate study. NACOSTI provides research grants for engineering and technology research.

Funding options

HELB Postgraduate Loan
DAAD Kenya Scholarship
NACOSTI Research Grant

Scholarships

3 recorded

HELB Postgraduate Scholarship
LoanKsh 200,000Kenyan
Kenyan postgraduate students
DAAD Kenya Scholarship
ScholarshipKenyan
Postgraduate students in Kenya
NACOSTI Research Grant
GrantKenyan
Science and technology researchers in Kenya

Getting in

The grades, the alternatives, and who accredits the award.

What you need

KCSE mean grade: Masters Degree
Alternative entry: Holder of relevant Masters degree from a recognised university. Must submit a research proposal.

MSc in Agricultural Engineering, Food Engineering, Mechanical Engineering or related field
Relevant Masters from recognised university

How you are assessed

3 components

Thesis
Thesis50% of the mark
Doctoral thesis research, submission and oral defence
Thesis Proposal Defence
Oral defence20% of the mark
Defence of research proposal before departmental panel
Coursework
Continuous assessment30% of the mark
Laboratory reports, design projects and seminar presentations

Accreditation

Accredited by the Commission for University Education (CUE). Offered at JKUAT and Egerton University. Professional registration with the Engineers Board of Kenya may be pursued.

Accredited by

Commission for University Education
AcademicRequired
Statutory body responsible for accreditation of university programmes in Kenya

Where it leads

The roles it opens, and what you leave with.

Where graduates go

4 roles

Post-Harvest Technology Researcher
High demandKsh 160,000 to Ksh 400,000
Research at KALRO and international research institutes
University Professor
High demandKsh 180,000 to Ksh 450,000
Teaching and research in agricultural and food engineering departments
Food Processing Engineer
High demandKsh 170,000 to Ksh 420,000
Designing and optimising food processing operations
Quality Assurance Manager
Moderate demandKsh 150,000 to Ksh 380,000
Managing quality systems at food processing companies

Graduate outcomes

Graduates pursue careers as university professors, food processing engineers, post-harvest technology researchers and quality assurance managers. They work in universities, food processing companies and KALRO.

Where these fields lead

8 careers

Certifications

Industry links

Common misconceptions

Agricultural processing engineering is just about food manufacturing.
The field covers post-harvest handling, storage, packaging, quality control and process optimisation across all agricultural products.
There is no need for processing engineering PhDs in Kenya.
Kenya's 30 per cent post-harvest loss rate and Big Four manufacturing agenda create strong demand.
Processing engineering is the same as food science.
Processing engineering focuses on equipment design, process optimisation and thermal engineering, while food science focuses on product development.
Processing research has no practical application.
Research develops technologies for drying, packaging and processing that are directly used by food companies.