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Titolo:
Feasibility study of repeated harvesting of menthol from biologically viable Mentha x piperata using ultrasonic extraction
Autore:
Shotipruk, A; Kaufman, PB; Wang, HY;
Indirizzi:
Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA Univ Michigan Ann Arbor MI USA 48109 t Chem Engn, Ann Arbor, MI 48109 USA Univ Michigan, Dept Biol, Ann Arbor, MI 48109 USA Univ Michigan Ann ArborMI USA 48109 , Dept Biol, Ann Arbor, MI 48109 USA
Titolo Testata:
BIOTECHNOLOGY PROGRESS
fascicolo: 5, volume: 17, anno: 2001,
pagine: 924 - 928
SICI:
8756-7938(200109/10)17:5<924:FSORHO>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
LOCATED SECONDARY PRODUCT; GROWN PLANT-CELLS; GLANDULAR TRICHOMES; SALVIA-OFFICINALIS; BIOSYNTHESIS; SENSOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, HY Univ Michigan, Dept Chem Engn, Rm 3324,Dow Conn Bldg, Ann Arbor, MI 48109 USA Univ Michigan Rm 3324,Dow Conn Bldg Ann Arbor MI USA 48109 09 USA
Citazione:
A. Shotipruk et al., "Feasibility study of repeated harvesting of menthol from biologically viable Mentha x piperata using ultrasonic extraction", BIOTECH PR, 17(5), 2001, pp. 924-928

Abstract

To potentially replace the conventional destructive extraction process, wehave shown the feasibility of devising a novel technique that uses ultrasound to nonlethally and repeatedly extract menthol from biologically viable peppermint plants (Mentha x piperita). Our results show that plants ultrasonicated for 1 h at 22 degreesC in a standard 40 kHz ultrasonic bath could release approximately 17.8 mug of menthol per gram of leaf tissue (2% of total product). The amount of menthol release increases with the time of treatment and is greatly affected by the temperature of the ultrasonic bath water. An increase from 2% to 12% of total product was observed when the temperature was increased from 22 degreesC to 39 degreesC. When the temperature effects were isolated, the mechanism of the product release was found to be that of cavitation. The treated plants remained viable and were ready for the subsequent ultrasound extraction after approximately 4 days of recuperation. However, the amount of product released is reduced in subsequent extractions. Scanning electron micrographs indicate that there are two mechanisms involved in extraction: (1) the diffusion of product through the cuticle of peppermint glandular trichomes and (2) the exudation of the product frombroken and damaged trichomes. This study has shown the possibility of using an online ultrasonic, nondestructive extraction method to continuously release intracellular plant metabolites from the plants while maintaining theplant's viability.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 12:11:50