Convection and Microwave–Convection Drying of Moldavian Dragonhead (Dracocephalum moldavica L.) Leaves

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F24%3A43911067" target="_blank" >RIV/60076658:12220/24:43911067 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2076-3417/14/24/11496" target="_blank" >https://www.mdpi.com/2076-3417/14/24/11496</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/app142411496" target="_blank" >10.3390/app142411496</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Convection and Microwave–Convection Drying of Moldavian Dragonhead (Dracocephalum moldavica L.) Leaves

Popis výsledku v původním jazyce

Moldavian dragonhead leaves are a valuable waste product from the production of seed oil, from a nutritional point of view. It has been shown that dried leaves can be used for the production of functional foods. Despite the wide possibilities of using dried Moldavian dragonhead leaves, research on the selection of drying methods is scarce. This particular study investigated the traditional convection and the hybrid microwave–convection methods to dry Moldavian dragonhead leaves. We showed that the convection method supported by microwaves allowed us to obtain dried leaves in a much shorter time than traditional convection drying (the convection drying lasted, depending on the parameters, 184-75 min, while the convection–microwave drying lasted 33-7 min). Moreover, the microwave–convection-dried leaves contained more polyphenols (the average TPC in the convection droughts was 29.532, while in the microwave–convection droughts, it was 41.880 mg GAE/g d.m.) and chlorophylls (an average of 2.326 in the convection-dried and 2.675 mg/g d.m. in the microwave–convection-dried material) and were characterized by significantly higher antioxidant activity, compared to convection-dried ones.

Název v anglickém jazyce

Convection and Microwave–Convection Drying of Moldavian Dragonhead (Dracocephalum moldavica L.) Leaves

Popis výsledku anglicky

Moldavian dragonhead leaves are a valuable waste product from the production of seed oil, from a nutritional point of view. It has been shown that dried leaves can be used for the production of functional foods. Despite the wide possibilities of using dried Moldavian dragonhead leaves, research on the selection of drying methods is scarce. This particular study investigated the traditional convection and the hybrid microwave–convection methods to dry Moldavian dragonhead leaves. We showed that the convection method supported by microwaves allowed us to obtain dried leaves in a much shorter time than traditional convection drying (the convection drying lasted, depending on the parameters, 184-75 min, while the convection–microwave drying lasted 33-7 min). Moreover, the microwave–convection-dried leaves contained more polyphenols (the average TPC in the convection droughts was 29.532, while in the microwave–convection droughts, it was 41.880 mg GAE/g d.m.) and chlorophylls (an average of 2.326 in the convection-dried and 2.675 mg/g d.m. in the microwave–convection-dried material) and were characterized by significantly higher antioxidant activity, compared to convection-dried ones.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Sciences-Basel

ISSN

2076-3417

e-ISSN

2076-3417

Svazek periodika

14

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

"DEC 2024"

Kód UT WoS článku

001384302900001

EID výsledku v databázi Scopus

2-s2.0-85213248790