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Iaccheri E, Cevoli C, Dalla Rosa M, Fabbri A. Thermophysical properties of frozen parsley: A state diagram representation. J FOOD PROCESS ENG 2021. [DOI: 10.1111/jfpe.13651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eleonora Iaccheri
- Interdepartmental Centre for Agri‐Food Industrial Research, Alma Mater Studiorum University of Bologna Cesena Italy
| | - Chiara Cevoli
- Interdepartmental Centre for Agri‐Food Industrial Research, Alma Mater Studiorum University of Bologna Cesena Italy
- Department of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna Cesena Italy
| | - Marco Dalla Rosa
- Interdepartmental Centre for Agri‐Food Industrial Research, Alma Mater Studiorum University of Bologna Cesena Italy
- Department of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna Cesena Italy
| | - Angelo Fabbri
- Interdepartmental Centre for Agri‐Food Industrial Research, Alma Mater Studiorum University of Bologna Cesena Italy
- Department of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna Cesena Italy
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Payre B, Gontier E, Jarray A, Martinez Y, Laugier JP, Delalleau A, Gaillard BM, Anselme I, Goudounèche D, Fourquaux I, Hemati M, Gerbaud V, Delisle MB, Guilbeau-Frugier C. A new HPF specimen carrier adapter for the use of high-pressure freezing with cryoscanning electron microscope: two applications: stearic acid organization in a hydroxypropyl methylcellulose matrix and mice myocardium. J Microsc 2018; 271:255-265. [PMID: 29901222 DOI: 10.1111/jmi.12713] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 04/20/2018] [Accepted: 04/27/2018] [Indexed: 11/30/2022]
Abstract
Cryogenic transmission electron microscopy of high-pressure freezing (HPF) samples is a well-established technique for the analysis of liquid containing specimens. This technique enables observation without removing water or other volatile components. The HPF technique is less used in scanning electron microscopy (SEM) due to the lack of a suitable HPF specimen carrier adapter. The traditional SEM cryotransfer system (PP3000T Quorum Laughton, East Sussex, UK; Alto Gatan, Pleasanton, CA, USA) usually uses nitrogen slush. Unfortunately, and unlike HPF, nitrogen slush produces water crystal artefacts. So, we propose a new HPF specimen carrier adapter for sample transfer from HPF system to cryogenic-scanning electronic microscope (Cryo-SEM). The new transfer system is validated using technical two applications, a stearic acid in hydroxypropyl methylcellulose solution and mice myocardium. Preservation of samples is suitable in both cases. Cryo-SEM examination of HPF samples enables a good correlation between acid stearic liquid concentration and acid stearic occupation surface (only for homogeneous solution). For biological samples as myocardium, cytoplasmic structures of cardiomyocyte are easily recognized with adequate preservation of organelle contacts and inner cell organization. We expect this new HPF specimen carrier adapter would enable more SEM-studies using HPF.
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Affiliation(s)
- B Payre
- Centre de Microscopie Electronique Appliquée à la Biologie, Faculté de Médecine Rangueil, Toulouse III, P. Sabatier University, 31062, Toulouse, France
| | - E Gontier
- Bordeaux Imaging Center - UMS 3420-Université Bordeaux / CNRS / INSERM, F-33000, Bordeaux, France
| | - A Jarray
- LGC, INP, ENSIACET, 4 Allée Emile Monso, 31432, Toulouse, France
| | - Y Martinez
- CNRS, FR3450, Federation de recherche Agrobiosciences, Interactions, Biodiversité, BP 42617 Auzeville, F-31326, Castanet Tolosan, France
| | - J P Laugier
- Centre Commun de Microscopie Appliquée, Université de Nice-Sophia Antipolis, Nice, France
| | - A Delalleau
- Pixience, 12 rue Louis Courtois de Viçose, 31100, Toulouse, France
| | - B M Gaillard
- INRA, Centre Clermont-Ferrand - Theix, UMR1019, University of Clermont-Ferrand 1, UFR Médecine, UMR101, F-63000, Clermont-Ferrand, France
| | - I Anselme
- Centre de Microscopie Electronique Stéphanois - CMES-Saint Etienne, Université de Lyon, Saint-Etienne, France
| | - D Goudounèche
- Centre de Microscopie Electronique Appliquée à la Biologie, Faculté de Médecine Rangueil, Toulouse III, P. Sabatier University, 31062, Toulouse, France
| | - I Fourquaux
- Centre de Microscopie Electronique Appliquée à la Biologie, Faculté de Médecine Rangueil, Toulouse III, P. Sabatier University, 31062, Toulouse, France
| | - M Hemati
- LGC, INP, ENSIACET, 4 Allée Emile Monso, 31432, Toulouse, France
| | - V Gerbaud
- LGC, INP, ENSIACET, 4 Allée Emile Monso, 31432, Toulouse, France
| | - M B Delisle
- Centre de Microscopie Electronique Appliquée à la Biologie, Faculté de Médecine Rangueil, Toulouse III, P. Sabatier University, 31062, Toulouse, France.,CHU Toulouse and INSERM U 1037, Toulouse CEDEX, 31059, France
| | - C Guilbeau-Frugier
- Centre de Microscopie Electronique Appliquée à la Biologie, Faculté de Médecine Rangueil, Toulouse III, P. Sabatier University, 31062, Toulouse, France
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