Naslov
Do broccoli's phenolics like it hot or cold?

Autori
Gmižić, Daria ; Šola, Ivana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
7th FACULTY OF SCIENCE PhD STUDENT SYMPOSIUM - BOOK OF ABSTRACTS / - , 2023, 36-36

Skup
7th FACULTY OF SCIENCE PhD STUDENT SYMPOSIUM

Mjesto i datum
Zagreb, Hrvatska, 21.04.2023. - 22.04.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Brassicaceae, climate change, phytochemicals, specialized plant metabolites

Sažetak
Plants produce specialized metabolites, phenolics being one of them, in order to adapt to abiotic and biotic stresses more successfully. This study aimed to investigate which groups of phenolics in broccoli seedlings (Brassica oleracea botrytis var. cymosa) are more susceptible to concentration changes at high and low growing temperature. To answer this, in the fall of 2022/2023, we cultivated three biological replicas of broccoli seedlings in three different temperature conditions: high (38 °C day/33 °C night), low (12 °C day/7 °C night), and regular (23 °C day/18 °C night) as a control group. Seedlings were lyophilized, extracts in 70% ethanol prepared and spectrophotometric analyses of total phenolics, flavonoids, flavonols, hydroxycinnamic and phenolic acids were conducted. According to the results, total flavonols and flavonoids decreased significantly when seedlings were grown at both high and low temperatures, while total phenolics, phenolic and hydroxycinnamic acids decreased significantly only when grown at high temperature. Out of these groups of phenolics, total flavonols were the most susceptible to change when grown at high temperature, while total flavonoids were the most susceptible to change when grown at low temperature. Total phenolic acids were the most resistant at high and low temperature cultivation. In conclusion, high temperature cultivation significantly reduced the concentration of all analyzed groups of phenolics and had more impact on phenolics of broccoli seedlings than low temperature cultivation.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Interdisciplinarne prirodne znanosti, Poljoprivreda (agronomija), Biotehnologija, Nutricionizam

POVEZANOST RADA