DRY-BREAD Drying Technologies, Drying Kinetics, and Mathematical Modelling of Breadfruit (Artocarpus altilis): Data Comparison of Cabinet and Solar Drying
- Beschreibung
Breadfruit (Artocarpus altilis) is a tropical food crop with considerable potential for food diversification and value-added product development. However, its relatively high moisture content and perishability can limit its storage stability, distribution, and utilization. Drying is an important preservation technology that reduces moisture content and can extend shelf life when appropriate processing and storage conditions are achieved.
DRY-BREAD is a literature-based research project that investigates the principles, technologies, and scientific foundations of breadfruit drying, with particular emphasis on cabinet drying and solar drying. The project will explore how drying conditions influence moisture removal, drying kinetics, mathematical modelling, and selected product quality characteristics.
Students will systematically identify, evaluate, and synthesize scientific publications on breadfruit drying and, where breadfruit-specific evidence is limited, relevant studies on other tropical fruits and starchy crops. The literature review will examine the main factors affecting drying performance, including temperature, drying time, air velocity, relative humidity, solar radiation, sample thickness, initial moisture content, and product loading.
A major component of the project will be the examination of drying curves and mathematical models used to describe moisture reduction over time. Students will investigate commonly applied thin-layer drying models, including the Newton or Lewis, Page, and Henderson–Pabis models, and evaluate their reported suitability for describing the drying behaviour of breadfruit and comparable food materials.
The project will also compare the operating principles, advantages, limitations, and potential applications of cabinet dryers and solar dryers. Particular attention will be given to drying duration, process controllability, dependence on weather conditions, energy requirements, product quality, and the availability of experimental data for evaluating process performance.
The project will be conducted exclusively through literature research. No new drying experiments will be required, and students will not be expected to generate new experimental datasets. Instead, they will develop research skills through scientific literature searching, critical appraisal, data extraction from published studies, comparative analysis, and scientific writing.
The final outcome will be a structured scientific report that summarizes the current state of knowledge, identifies research gaps, and proposes recommendations for future research on the drying of breadfruit.
- Beschreibung des interdisziplinären Teils des Projekts
- DRY-BREAD combines concepts and methods from several disciplines to provide a comprehensive understanding of breadfruit drying. Food Science and Technology: Students will examine the relationship between moisture removal, preservation, storage stability, and selected quality attributes, such as colour, texture, rehydration behaviour, and physicochemical properties, where these are reported in the literature. Process Engineering and Heat and Mass Transfer: The project will introduce the principles of heat transfer, moisture diffusion, mass transfer, and the influence of operating conditions on drying behaviour. Students will explore how these principles help explain differences between cabinet and solar drying systems. Mathematics and Data Analysis: Students will investigate the mathematical representation of drying kinetics, the interpretation of drying curves, and the use of statistical indicators to assess the goodness of fit of published drying models. They will compare reported model parameters and recognize the limitations of comparing results obtained under different experimental conditions. Renewable Energy and Sustainability: The project will consider solar energy utilization, weather dependence, process reliability, and energy-related trade-offs. Students will distinguish between the potential environmental advantages of solar drying and the evidence required to demonstrate actual energy or environmental benefits. Scientific Research and Communication: Students will develop competencies in literature searching, source evaluation, structured evidence synthesis, scientific argumentation, and research reporting. Through this interdisciplinary approach, students will learn to connect food preservation principles with engineering analysis, mathematical modelling, and sustainability considerations. They will also recognize that technological performance must be evaluated in relation to product quality, operating conditions, and the intended application.
- Projektzeitraum
- Wintersemester 2026/2027
- Bewerbungszeitraum
- 12. bis 26.10.2026
- Durchführung
- semesterbegleitend
- Details zu Projektzeitraum und Durchführung
The project will be conducted through supervised literature research, regular consultations, independent study, and collaborative scientific discussion. Students will work with published scientific articles, review papers, and other relevant academic sources.
The implementation will consist of the following activities:
Phase 1: Introduction and research question
Introduction to breadfruit as a food material and its potential for preservation through drying.
Discussion of the objectives and scope of the literature review.
Formulation of research questions concerning drying technologies, drying kinetics, mathematical models, and product quality.
Phase 2: Literature search and selection
Development of search terms and search strategies.
Searching relevant academic databases, such as Scopus, Web of Science, and Google Scholar, depending on availability.
Identification of studies on breadfruit drying, cabinet drying, solar drying, and drying models for comparable food materials.
Definition of transparent inclusion and exclusion criteria.
Organization of references using a reference management tool.
Phase 3: Literature screening and data extraction
Screening titles, abstracts, and full texts for relevance.
Extraction of information on sample preparation, dryer type, operating conditions, drying duration, initial and final moisture content, and reported quality attributes.
Recording the mathematical models used and the reported model parameters and evaluation criteria.
Documentation of limitations and missing information in individual studies.
Phase 4: Comparative analysis
Comparison of cabinet and solar drying based on published evidence.
Examination of drying curves and moisture reduction patterns presented in the literature.
Comparison of Newton/Lewis, Page, and Henderson–Pabis models where relevant information is available.
Assessment of the influence of process conditions on reported drying behaviour.
Synthesis of findings concerning process controllability, weather dependence, energy use, and product quality.
Phase 5: Critical discussion
Identification of similarities and differences among published findings.
Assessment of methodological limitations and the comparability of results across studies.
Identification of knowledge gaps in breadfruit drying research.
Development of evidence-based recommendations for future experimental studies.
Phase 6: Scientific reporting and presentation
Preparation of a structured scientific report.
Development of comparative tables, conceptual diagrams, and evidence-based figures.
Presentation of the main findings in a final seminar or poster session.
Discussion of the research process, limitations, and learning outcomes.
Students will receive regular feedback from the supervisor. The work will emphasize independent thinking, transparent documentation of research decisions, and critical interpretation rather than the simple collection or summarization of published information.
- Studienfach
- offen für alle Studienfächer
- Betreuende
- Dr. Fetriyuna Fetriyuna
- Institut
- Institut für Agrartechnik (440) (Food Engineering, Food Science and Technology, Food Science and Nutrition)
- Sprache
- englisch
- Teilnehmendenanzahl
- min. 1, max. 3
- Arbeitsaufwand
-
ca. 120 Stunden pro Teilnehmende:r
| 4
ECTS-Punkte
Arbeitsaufwand (Stunden und ggf. ECTS) sind ungefähre Angaben. Die tatsächlich vergebenen ECTS-Punkte ergeben sich aus der tatsächlich geleisteten Arbeit.
- Für dieses Projekt ist kein Motivationsschreiben des Studierenden erforderlich
- Projektart
- theoretisch/nicht experimentell
- Lernziele
-
Die Teilnehmende lernen in diesem Projekt:
By the end of the project, students will be able to:
Scientific knowledge
Explain the fundamental principles of food drying and the role of moisture removal in food preservation.
Describe the operating principles, advantages, and limitations of cabinet dryers and solar dryers.
Explain the basic mechanisms of heat and mass transfer relevant to food drying.
Describe drying curves, moisture content, drying rate, and moisture ratio as reported in scientific studies.
Recognize common mathematical models used to describe thin-layer drying kinetics and explain their parameters and limitations.
Research and analytical skills
6. Formulate focused research questions and develop a transparent strategy for searching scientific literature.
7. Critically evaluate the quality, relevance, and limitations of scientific publications.
8. Extract, organize, and compare technical information from different studies using structured tables.
9. Interpret published drying curves and model-performance indicators without overstating the conclusions supported by the evidence.
10. Compare drying technologies using clearly defined criteria and recognize the limitations of comparisons across different experimental conditions.
11. Identify knowledge gaps and formulate scientifically justified recommendations for future research.Interdisciplinary and sustainability competencies
12. Connect food quality and preservation requirements with process engineering principles and mathematical modelling.
13. Discuss the potential role of solar energy in food processing while recognizing the influence of weather, operating conditions, and process reliability.
14. Distinguish between reported energy-performance data and assumptions about environmental sustainability.
15. Evaluate technological choices from technical, product-quality, and sustainability perspectives.Communication and transferable skills
16. Prepare a structured scientific report using appropriate academic language and referencing conventions.
17. Communicate research findings through tables, figures, a poster, or an oral presentation.
18. Work independently and collaboratively, manage research tasks, respond to supervisory feedback, and reflect critically on the limitations of their own work. - Anmerkungen für Studierende
The scope of work can be adjusted before the project starts, according to the number of participants and depending on preferences and data generated from the scientific database
- Schlagworte
- breadfruit, food drying, cabinet drying, Solar drying, Drying kinetics, Moisture Content, heat and mass transfer