title: Scattering through fruits during ripening: laser speckle technique correlated to biochemical and fluorescence measurements.
abstract: This paper reports monitoring fruits maturation using speckle technique. Performed measurements aim the assessing of biological inner fruit variation effect on the speckle image. We show that the speckle grain size is both affected by the glucose level inside the fruits and by the chlorophyll content. Moreover, the determination of circular polarization degree and circular grain size indicate that a Rayleigh diffusion regime gradually becomes predominant in fruits. Principal component analysis is used to highlight high correlation between results and strengthen the establishment of speckle as a novel non invasive method to monitor fruits ripening.
authors.affiliation: Université de Brest, UEB, EA 938 Laboratoire de Spectrométrie et Optique Laser, 6 avenue Le Gorgeu, C.S. 93837, 29238, Brest Cedex 3, France. rana.nassif@univ-brest.fr
authors.forename: Rana
authors.initials: R
authors.lastname: Nassif
authors.forename: Fabrice
authors.initials: F
authors.lastname: Pellen
authors.forename: Christian
authors.initials: C
authors.lastname: Magné
authors.forename: Bernard
authors.initials: B
authors.lastname: Le Jeune
authors.forename: Guy
authors.initials: G
authors.lastname: Le Brun
authors.forename: Marie
authors.initials: M
authors.lastname: Abboud
mesh_terms: D001704:Biopolymers / Q000032:analysis*; D005504:Food Analysis / Q000379:methods*; D005638:Fruit / Q000033:anatomy & histology* / Q000737:chemistry*; D007834:Lasers; D057054:Molecular Imaging / Q000379:methods*; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013223:Statistics as Topic
chemical_list: D001704:Biopolymers