Photonics for Agrofoods and Environment

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At the Photonics for Agrofoods and Environment laboratory, we employ an alternative approach for the quick monitoring of the characteristic substances contained in food samples, with little or no processing.
We rely on our expertise in the area of the interaction of light with matter and the development of specialized optical spectroscopic analysis methods (such as light absorption and fluorescence techniques). This way, we can record the optical spectrum that is the characteristic "fingerprint" and reflects the chemical composition of a sample. Different samples have a different fingerprint and the detected differences or similarities are used for:
  • Identification
  • Origin determination
  • Quality control
We focus on spectroscopic methods such as UltraViolet/Visible, Near Infrared, Fourier Transform Infrared (FTIR), Fluorescence, Laser induced Fluorescence (LIF), Time Resolved Fluorescence (TRF), Raman and Laser Induced Breakdown Spectroscopy (LIBS). These techniques are quick and much cheaper than the time-consuming and costly conventional analytical techniques.
Our technology is used for:
  • Distinction of varieties of several agrofoods products (wine, oil, honey, milk, etc.)
  • Monitoring of wine maturation in relation to time and kind of barrel
  • Quality control of products
  • Detection of adulteration
  • Application of laser spectroscopic techniques for the detection of specific chemical substances in foods (contaminants, plasticizers, pesticides ...)
  • Creation of a database for the prominence of local varieties and the characterization of their geographical origin

Dr. Velegrakis Michalis

Physicist
Research Director

Dr. Samartzis Petros

Chemist
Principal Researcher

Dr. Zoumi Aikaterini

Mineral Resources Engineer PostDoctoral Fellow

Dr. Siozos Panos

Physicist
PostDoctoral Fellow

Dr. Filippidis Aggelos

Chemist
PostDoctoral Fellow

Ms. Kontzedaki Renate

Chemist
PhD Student

Mr. Orfanakis Emmanouil

Chemist
PhD Student

Mr. Fragkoulis Nikolaos

Chemist
PhD Student

Mrs. Stamataki Katerina

Physicist
Technical Assistant

Mr. Psyllakis Giannis

Engineer
Technical Assistant

Ms. Boumpoulaki Evangelia

Chemist
M.Sc. Student

Mr. Giannakidis Giannis

Physicist
M.Sc. Student

Mr. Findrilis Nektarios

Physicist
M.Sc. Student

Mr. Banoutsos Apostolos

Physicist
M.Sc. Student

Ms. Vlasiadi Maria

Undergraduate Student

Ms. Koniou Eirini

Undergraduate Student

  1. Characterization of Greek Wine by Ultraviolet-Visible Absorption Spectrometry and Statistical Multivariate Methods
    Aggelos Philippidis, Emmanouil Poulakis,  Marianthi Basalekou, Argiro Strataridaki, Stamatina Kallithraka, Michalis Velegrakis
    Analytical Letters 2017, vol. 50, no.12, 1950-1963  https://doi.org/10.1080/00032719.2016.1255748
  2. Comparative Study using Raman and Visible Spectroscopy of Cretan Extra Virgin Olive Oil Adulteration with Sunflower Oil
    Aggelos Philippidis, Emmanouil Poulakis, Antigoni Papadaki, Michalis Velegrakis
    Analytical Letters 2017, vol. 50, no 7., 1182-1195  https://doi.org/10.1080/00032719.2016.1208212
  3. Verifying the Geographical Origin and Authenticity of Greek Olive Oils by Means of Optical Spectroscopy and Multivariate Analysis
    Renate Kontzedaki, Emmanouil Orfanakis, Georgia Sofra-Karanti, Katerina Stamataki, Aggelos Philippidis, Aikaterini Zoumi, Michalis Velegrakis
    Molecules 2020, 25 (18), 4180  https://doi.org/10.3390/molecules25184180    
  4. Application of Ultraviolet-Visible Absorption Spectroscopy with Machine Learning Techniques for the Classification of Cretan Wines
    Aggelos Philippidis, Emmanouil Poulakis, Renate Kontzedaki, Emmanouil Orfanakis, Aikaterini Symianaki, Aikaterini Zoumi, Michalis Velegrakis
    Foods 2021, 10(1), 9  https://doi.org/10.3390/foods10010009
  5. Optical spectroscopy methods combined with multivariate statistical analysis for the classification of Cretan thyme, multi-floral and honeydew honey
    Emmanouil Orfanakis, Michail Markoulidakis, Aggelos Philippidis, Aikaterini Zoumi, Michalis Velegrakis
    J Sci Food Agric 2021, published online  https://doi.org/10.1002/jsfa.11182
  6. Application of Optical Spectroscopic Techniques and Multivariate Statistical Analysis as a Method of Determining the Percentage and Type of Adulteration of Extra Virgin Olive Oil
    Giorgos Stavrakakis, Aggelos Philippidis, Michalis Velegrakis
    Food Analytical Methods 2021  https://doi.org/10.1007/s12161-021-02055-8                                   
  7. Commercial milk discrimination by fat content and animal origin using optical absorption and fluorescence spectroscopy
    Nikolaos Fragkoulis, Peter C. Samartzis, Michalis Velegrakis
    International Dairy Journal 2021, 123, 105181 https://doi.org/10.1016/j.idairyj.2021.105181
  8. Autonomous Differential Absorption Laser Device for Remote Sensing of Atmospheric Greenhouse Gases
    Panagiotis Siozos, Giannis Psyllakis, Peter C. Samartzis, Michalis Velegrakis
    Remote Sensing 2022, 14, 460  https://doi.org/10.3390/rs14030460
  9. Comparative Evaluation of Different Targeted and Untargeted Analytical Approaches to Assess Greek Extra Virgin Olive Oil Quality and Authentication
    Sofia Drakopoulou, Emmanouil Orfanakis, Ioulia Karagiannaki, Fragiskos Gaitis, Stavroula Skoulika, Andreas Papaioannou, George Boukouvalas, George Petropoulos, Vassilios Katsoudas, Renate Kontzedaki, Aggelos Philippidis, Aikaterini Zoumi, Marilena Dasenaki, Nikolaos S. Thomaidis, Michalis Velegrakis
    Molecules 2022, 27, 1350   https://doi.org/10.3390/molecules27041350
  10. A continuous-wave, lidar sensor based on water vapour absorption lines at 1.52 μm
    Panagiotis Siozos, Giannis Psyllakis, Michalis Velegrakis
    Remote Sensing Letters 2022, vol. 13, no. 11, 1164-1172   https://doi.org/10.1080/2150704X.2022.2127130

Press /  Interviews / Publicity

  •  Historical opportunity for Cretan wines!
    It is hosted by Cretalive.gr (News & media website). Read the interview (in Greek).
  •  M. Velegrakis talks to “P” about the project "OINOFASMA": The team that aspires to upgrade wine and olive oil.
    It is hosted by the local Cretan newspaper PATRIS. Read the interview (in Greek).
  •  Lasers… to the farmer for climate change. "GREENHOUSE GAS" MEASUREMENTS.
     It is hosted by the local Cretan newspaper PATRIS. Read the interview (in Greek).
  •  Food Products Quality control: solution from FORTH.
    It is hosted by the local Cretan newspaper PATRIS. Read the interview
    (in Greek).
  •  Innovative practices from FORTH for product quality control  (in Greek).
     It is hosted by newshub.gr (online audio and video media). Read the interview (in Greek)
     and the Sound Clip (in Greek).
  • Laboratory Presentation at the Researcher’s Night 2020 (in Greek)
    Photonics for Agrofoods and Environment (in Greek)
  • FORTH celebrates World Science Day 2022 for Peace and Development - IESL is represented by our group
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