Microwave-Assisted Hydrodistillation of Hop (Humulus lupulus L.) Terpenes: A Pilot-Scale Study

Autor: Lorenzo Lamberti, Diego Carnaroglio, Giancarlo Cravotto, Lorenzo Gallina, Farid Chemat, Giorgio Grillo
Přispěvatelé: DSTF - University of Turin, University of Turin, Baladin S, Agricola, Milestone s.r.l., Sécurité et Qualité des Produits d'Origine Végétale (SQPOV), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
hops (Humulus lupulus L.)
Health (social science)
Humulus lupulus
Green extraction
Hops (Humulus lupulus L.)
Microwave-assisted hydrodistillation
Pilot-scale extraction
Ter-penes
Fraction (chemistry)
02 engineering and technology
Plant Science
TP1-1185
7. Clean energy
01 natural sciences
Health Professions (miscellaneous)
Microbiology
Article
Hop (networking)
[SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
Matrix (chemical analysis)
Terpene
[SDV.IDA]Life Sciences [q-bio]/Food engineering
[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
Food science
pilot-scale extraction
biology
010405 organic chemistry
Chemistry
Chemical technology
Extraction (chemistry)
Pilot scale
021001 nanoscience & nanotechnology
biology.organism_classification
microwave-assisted hydrodistillation
0104 chemical sciences
Yield (chemistry)
0210 nano-technology
terpenes
Food Science
Zdroj: Foods
Foods, MDPI, 2021, 10 (11), pp.2726. ⟨10.3390/foods10112726⟩
Foods, Vol 10, Iss 2726, p 2726 (2021)
Volume 10
Issue 11
ISSN: 2304-8158
DOI: 10.3390/foods10112726⟩
Popis: Interest in essential oils has consistently increased in recent years. Essential oils have a large variety of applications in multiple fields, including in the food, cosmetics and pharmaceutical industries. The volatile fraction (VF) in hops (Humulus lupulus L.) fits within this domain as it is primarily used in the brewery industry for the aromatization of beer, and is responsible for the floral and fruity tones. This work aims to design an optimized extraction protocol of the VF from hops, using microwaves. Microwave-assisted hydrodistillation (MAHD) has been developed to reduce energy and time consumption in lab-scale reactors up to industrial-scale systems. Hops are principally available in three forms, according to a brewery’s applications: (i) fresh (FH)
(ii) dried (DH) and (iii) pelletized (PH). In this work, all three forms have therefore been studied and the recovered volatiles characterized by means of GC-MS. The optimized lab-scale MAHD protocol gave the best extraction yield of 20.5 mLVF/kgdry matrix for FH. This value underwent a slight contraction when working at the highest matrix amount (3 kg), with 17.3 mLVF/kgdry matrix being achieved. Further tests were then performed in a pilot reactor that is able to process 30 kg of material. In this case, high yield increases were observed for PH and DH
quadruple and double the lab-scale yields, respectively. In addition, this industrial-scale system also provided marked energy savings, practically halving the absorbed kJ/mLVF.
Databáze: OpenAIRE