Drying Atlas

Drying Atlas

Drying Kinetics and Quality of Agricultural Products

1st Edition - February 21, 2020

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  • Authors: H.C. Werner Muhlbauer, Joachim Muller
  • eBook ISBN: 9780128181638
  • Paperback ISBN: 9780128181621

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Drying Atlas: Drying Kinetics and Quality of Agricultural Products provides, in a condensed and systematic way, specific insights on the drying-relevant properties and coefficients of over 40 agricultural products. It also presents information about the production methods that influence the drying process, the quality of the dried product, the official quality standards of the products, and the design principles and operating characteristics of drying systems that are widely used in the postharvest processing and food industry. Available books on drying technology mainly focus on drying theory and simulation of drying processes. This book offers systematic information on the impact of other important parameters, such as relative humidity, air flow rate, mechanical, thermal and chemical pre-treatment, and drying mode for specific products. It is a unique and valuable reference for scientists and engineers who want to focus on industrial drying applications and dryers, as well as graduate and post-graduate students in postharvest technology and drying.

Key Features

  • Explores the production methods that influence the drying process and quality of the dried product
  • Outlines the official quality standards of the products, the design principles, and the operating characteristics of drying systems that are used in postharvest processing
  • Features 41 chapters that are (each for an agricultural product) presented in a condensed and systematic way


Scientists in food science and engineers in industrial drying applications as well as for users of dryers; graduate and post-graduate students in postharvest technology and drying technology

Table of Contents

  • 1. Production and Processing

    1.1 Production

    1.1.1 Appropriate cultivars

    1.1.2 Optimum stage of maturity

    1.1.3 Production methods

    1.1.4 Pre-treatments

    1.2 Drying

    1.2.1 Drying parameters

    1.2.2 Drying Methods

    1.3 Storage and Packaging

    1.3.1 Storage conditions

    1.3.2 Storage methods

    1.3.3 Packagin

    1.4 Quality

    1.4.1 General aspects

    1.4.2 Utilization of dried products

    1.4.3 Quality standards

    1.4.4 Drying relevant parameters

    1.4.5 Chemical composition

    1.4.6 Important ingredients

    2. Drying and Quality Kinetics

    2.1. Drying Kinetics

    2.1.1 Optimization strategies

    2.1.2 Standardized drying method

    2.1.3 Thin-layer laboratory dryer

    2.1.4 Thin-layer drying curves

    2.1.5 Thin-layer drying models

    2.2. Quality Kinetics

    2.2.1 Impact of drying on quality

    2.2.2 Optimization strategy

    2.2.3 Standardized procedure

    2.2.4 Reaction kinetics

    3. Cereals

    3.1 Barley

    3.2 Maize

    3.3 Oat

    3.4. Rice

    3.5. Rye

    3.6. Wheat

    4. Root Crops

    4.1 Cassava

    4.2 Potato

    5.  Oil Crops

    5.1 Coconut

    5.2 Peanut

    5.3 Rapeseed

    5.4 Soybean

    5.5 Sunflower

    6. Vegetables

    6.1 Carrot

    6.2 Paprika

    6.3 Tomato

    7. Spices

    7.1 Chilli

    7.2 Garlic

    7.3 Onion

    8. Stimulants

    8.1 Cocoa

    8.2 Coffee

    9. Fruits

    9.1 Apple

    9.2 Apricot

    9.3 Banana

    9.4 Fig

    9.5 Grape

    9.6 Litchi

    9.7 Longan

    9.8 Mango

    9.9 Papaya

    9.10 Pineapple

    9.11 Plum

    10. Medicinal Plants

    10.1 Basil

    10.2 Chamomile

    10.3 Lemon balm

    10.4 Marjoram

    10.5 Peppermint

    10.6 Sage

    10.7 St. John´s Wort

    10.8 Tarragon

    10.9 Valerian

Product details

  • No. of pages: 446
  • Language: English
  • Copyright: © Woodhead Publishing 2020
  • Published: February 21, 2020
  • Imprint: Woodhead Publishing
  • eBook ISBN: 9780128181638
  • Paperback ISBN: 9780128181621

About the Authors

H.C. Werner Muhlbauer

Werner Mühlbauer received his master's degree (Dipl.-Ing.) in 1969 and doctoral degree (Dr.-Ing.) in 1974 in mechanical engineering from the University of Stuttgart, Germany and has been working in the field of drying agricultural commodities since 1970. His research covers almost all aspects of drying technologies (physical properties, drying theory, drying simulation, drying kinetics, impact of drying on quality, energy saving, development of drying methods, dryer testing and evaluation, etc.). Prof. Mühlbauer developed high accuracy test benches and standardized procedures to measure drying curves to predict drying behaviour and impact on quality of most important drying products (cereals, root and oil crops, vegetables and spices, stimulants, fruits and medicinal plants. He has published 353 papers in national and international scientific journals; he holds 6 patents and gave more than 250 presentations at scientific conferences in 25 countries, mainly on drying of agricultural products. He supervised 31 PhD-theses, 168-MSc theses and 95-BSc theses. He is author of the Handbook on Grain Drying (in German), the only book on this topic worldwide containing all aspects of drying from drying theory to practical applications. Since his retirement in 2004, Prof. Mühlbauer is working as scientific adviser to a leading German drying company.

Affiliations and Expertise

Retired Professor, University of Hohenheim, Stuttgart, Germany

Joachim Muller

Joachim Müller received his master's degree (Dipl.-Ing. agr.) in 1985 and his doctoral degree (Dr. sc. agr.) in 1992 at the University of Hohenheim, Institute of Agricultural Engineering in the Tropics and Subtropics. In 2001, Prof. Müller was appointed as full professor to the Department Agrotechnology and Food Sciences, Farm Technology at the Wageningen University (NL) and held this position until 2004. In 2004 he was appointed as full professor at the University of Hohenheim, Institute of Agricultural Engineering, where he has since been head of the Tropics and Subtropics Department. He has functioned as General Director of the Institute of Agricultural Engineering from 2012-2016. In 2018 he has been additionally appointed Academic Director of the State Institute of Agricultural Engineering and Bioenergy at the University of Hohenheim. He is Editor-in-Chief for the Journal of Applied Research of Medicinal and Aromatic Plants and is a member of the editorial board for several other journals as well as a member of the scientific advisory council of the fiat-panis-foundation. He also acts as reviewer for the German Science Foundation (DFG), the Alexander-von-Humboldt Foundation and the German Ministry of Education and Research (BMBF). He is also a member of the Committee of Experts in Food Technology of the German Agricultural Society (DLG). Prof. Müller contributed chapters to three books in German and five books in English, amongst them the chapter Solar Drying in Modern Drying Technology, Vol. 4 Energy Savings, Wiley (2012). He is author or co-author of 180 international, peer-reviewed publications. Twenty PhD-theses, 149 MSc-theses and 67 BSc-theses have been completed under his supervision. He is currently supervising 29 doctoral students. Under his guidance, five patents were issued between 2003-2015 and another four patent applications are pending.

Affiliations and Expertise

Institute of Agricultural Engineering, University of Hohenheim, Stuttgart, Germany

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