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Titolo:
SHORT-TIME DRYING OF HEAT-SENSITIVE, BIOLOGICALLY-ACTIVE PULPS AND PASTES
Autore:
SZENTMARJAY T; PALLAI E; REGENYI Z;
Indirizzi:
MTA MUKKI,HUNGARIAN ACAD SCI,RES INST CHEM ENGN,EGYETEM U2,PF 125 H-8201 VESZPREM HUNGARY
Titolo Testata:
Drying technology
fascicolo: 9, volume: 14, anno: 1996,
pagine: 2091 - 2115
SICI:
0737-3937(1996)14:9<2091:SDOHBP>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPOUTED BED;
Keywords:
DRYING CURVE; DRYING RATE; FILM-LIKE COATING; INERT PARTICLES; SPOUTED BED DRYER; TOMATO; YEAST;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
T. Szentmarjay et al., "SHORT-TIME DRYING OF HEAT-SENSITIVE, BIOLOGICALLY-ACTIVE PULPS AND PASTES", Drying technology, 14(9), 1996, pp. 2091-2115

Abstract

Tomato concentrate and baker's yeast suspension were dried in the laboratory scale Mechanically Spouted Bed dryer with inert packing. Due to a large contact surface Provided by the inert particles, very fast drying process can be achieved, if the thickness of the wet coating formed on the surface of the inert packing is film-like. The diffusion resistance can be then considered negligible and drying can be performedat ''quasi-constant'' rate. Derived from hydrodynamic characteristicsthe contact time between hot air and the wet coating is very short, therefore gentle drying process can be performed. The quality of the dried yeast was controlled by counting the living cells (relative viability) and by measurement of the dough rise time. During continuous drying of thermoplastic tomato puree the ''case hardening'' periods could be shortened and tomato powder with insignificant quality loss was produced.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 19:33:35