Effect of temperature and feed on the mineral content and the content of selected heavy metals in mealworm

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43620%2F20%3A43918330" target="_blank" >RIV/62156489:43620/20:43918330 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28110/20:63526186 RIV/00216305:26220/20:PU137490

Výsledek na webu

<a href="https://doi.org/10.5601/jelem.2019.24.4.1932" target="_blank" >https://doi.org/10.5601/jelem.2019.24.4.1932</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5601/jelem.2019.24.4.1932" target="_blank" >10.5601/jelem.2019.24.4.1932</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of temperature and feed on the mineral content and the content of selected heavy metals in mealworm

Popis výsledku v původním jazyce

Minerals are important components of thousands of enzymes and other compounds in the body. Although the content of minerals in the human body is small, their importance is immense. Edible insects can provide many of these minerals in abundance, and are therefore thought to be a good source of micronutrients. This study dealt with the effect of a rearing temperature and feed on the mineral content and on the content of selected heavy metals in mealworm (Tenebrio molitor). Mealworm larvae were kept at temperatures of 15, 20 and 25oC, and fed with wheat bran, lentil flour and a mixture of both. The types of feed for the experimental groups were chosen purposefully, considering the availability on site, price and especially the impact on the nutrition composition suitable for human. The concentrations of the most significant elements in terms of human nutrition concerns, that is zinc and copper, were determined with inductively coupled plasma mass spectrometry. The results showed that the normality condition was not achieved for Ca, Fe, P and Pb (p&lt;0.05). Therefore, these data were compared using the Kruskal-Wallis method, while ANOVA test was performed for the other elements. There was a statistically significant dependence of the Cd concentration on feed at a constant rearing temperature of 15oC and 25oC over the entire feed change range. The results included a change in Mg over the whole range of monitored values with a change of the rearing temperature and constant feed of lentils-bran,and with a change of feed and constant rearing temperature of 15oC. In contrast, concentrations of Na, P, Ca and Cu over the whole observed range of feed or rearing temperature changes were independent from the variables. With an appro-priately chosen rearing temperature and feed, it is possible to obtain mealworm with specific nutritional properties for a target group of consumers.

Název v anglickém jazyce

Effect of temperature and feed on the mineral content and the content of selected heavy metals in mealworm

Popis výsledku anglicky

Minerals are important components of thousands of enzymes and other compounds in the body. Although the content of minerals in the human body is small, their importance is immense. Edible insects can provide many of these minerals in abundance, and are therefore thought to be a good source of micronutrients. This study dealt with the effect of a rearing temperature and feed on the mineral content and on the content of selected heavy metals in mealworm (Tenebrio molitor). Mealworm larvae were kept at temperatures of 15, 20 and 25oC, and fed with wheat bran, lentil flour and a mixture of both. The types of feed for the experimental groups were chosen purposefully, considering the availability on site, price and especially the impact on the nutrition composition suitable for human. The concentrations of the most significant elements in terms of human nutrition concerns, that is zinc and copper, were determined with inductively coupled plasma mass spectrometry. The results showed that the normality condition was not achieved for Ca, Fe, P and Pb (p&lt;0.05). Therefore, these data were compared using the Kruskal-Wallis method, while ANOVA test was performed for the other elements. There was a statistically significant dependence of the Cd concentration on feed at a constant rearing temperature of 15oC and 25oC over the entire feed change range. The results included a change in Mg over the whole range of monitored values with a change of the rearing temperature and constant feed of lentils-bran,and with a change of feed and constant rearing temperature of 15oC. In contrast, concentrations of Na, P, Ca and Cu over the whole observed range of feed or rearing temperature changes were independent from the variables. With an appro-priately chosen rearing temperature and feed, it is possible to obtain mealworm with specific nutritional properties for a target group of consumers.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40500 - Other agricultural sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Elementology

ISSN

1644-2296

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

12

Strana od-do

1077-1088

Kód UT WoS článku

000580459000008

EID výsledku v databázi Scopus

2-s2.0-85090813977