Instant controlled pressure drop (DIC) effect on compositional analysis of olive leaves (Olea europaea L.)

Instant controlled pressure drop (DIC) effect on compositional analysis of olive leaves (Olea europaea L.)

Instant controlled pressure drop (DIC) was widely used as a treatment to intensify the extraction of bioactive compounds from plants. The aim of this work is to investigate the effect of DIC treatment on the biochemical composition and functional properties of Chemlali olive leaves. DIC conditions w...

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Bibliographic Details
Published in:Journal of food measurement & characterization Vol. 16; no. 2; pp. 1494 - 1501
Main Authors: Mkaouar, Sameh, Charfi, Belkiss, Tounsi, Leila, Bahloul, Neila, Allaf, Karim, Kechaou, Nabil
Format: Journal Article
Language:English
Published: New York Springer US 01-04-2022
Springer Nature B.V
Subjects:
Ashes
Bioactive compounds
Biochemical composition
Calcium compounds
Carbohydrates
Chemical composition
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Composition effects
Cycle protein
Engineering
Fatty acids
Fibers
Food Science
Industrial applications
Leaves
Linolenic acid
Original Paper
Pigments
Pressure drop
Pressure effects
Proteins
Pigments
Instant controlled pressure drop (DIC)
Minerals
Fatty acids
Olive leaves
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Summary:Instant controlled pressure drop (DIC) was widely used as a treatment to intensify the extraction of bioactive compounds from plants. The aim of this work is to investigate the effect of DIC treatment on the biochemical composition and functional properties of Chemlali olive leaves. DIC conditions were pressure P = 0.1 MPa, number of cycles C = 1 and time t = 11 s. The concentrations of protein, fat, ash, total carbohydrates and fibers in untreated olive leaves powder are 8.62; 3.73; 8.46; 76.49; 64.29 mg/g db, respectively. DIC treatment had significant effects on the chemical composition. Indeed, it increased the amounts of fat (8.33 mg/g db), ash (10.37 mg/g db) and decreased those of protein (6.81 mg/g db), carbohydrates (69 mg/g db) and fibers (53.57 mg/g db). While it had no significant effect on functional properties and pigments. Ten fatty acids were identified and evaluated, with the most abundant being linolenic acid (C 18:3 ) for both olive leaves samples. Mineral analysis proved potassium and calcium as the major elements in both powders. This study showed that DIC treatment is an effective method to increase olive leaves active compounds such as fatty acids and minerals that may be useful in industrial applications.
ISSN:2193-4126
2193-4134
DOI:10.1007/s11694-021-01257-2