Pregled bibliografske jedinice broj: 872073
Quantitative determination of flavonoids in the leaves of lemon balm - Melissa officinalis L.
Quantitative determination of flavonoids in the leaves of lemon balm - Melissa officinalis L. // 25. Hrvatski skup kemičara i kemijskih inženjera - knjiga sažetaka / Šantić, Ana ; Đaković, Marijana ; (ur.).
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Hrvatsko kemijsko drustvo, 2017. str. 247-247 (poster, domaća recenzija, sažetak, znanstveni)
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Naslov
Quantitative determination of flavonoids in the leaves of lemon balm - Melissa officinalis L.
Autori
Maleš, Željan ; Žunić, Katarina ; Suban Jakuš, Valentina ; Bojić, Mirza
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
25. Hrvatski skup kemičara i kemijskih inženjera - knjiga sažetaka
/ Šantić, Ana ; Đaković, Marijana ; - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Hrvatsko kemijsko drustvo, 2017, 247-247
Skup
25. Hrvatski skup kemičara i kemijskih inženjera
Mjesto i datum
Poreč, Hrvatska, 19.04.2017. - 22.04.2017
Vrsta sudjelovanja
Poster
Vrsta recenzije
Domaća recenzija
Ključne riječi
lemon balm, flavonoids
Sažetak
Medicinal properties of lemon balm (Melissa officinalis L.) have been known for centuries in Europe and the wider Mediterranean area. In Croatia, use of lemon balm as a medicinal plant begun under the influence of German monasteries during the Middle Ages. Antidepressant, antidiabetic, cardioprotective and antimicrobial properties have been investigated in numerous studies. Polyphenols, including flavonoids, are considered to be the main components responsible for pharmacological activity. The objective of this work was to determine the total content of flavonoids using spectrophotometric method by Christ and Müller [1]. In this method flavonoids are determined as aglycones after hydrolysis in a complex with Al3+. Quantity of flavonoids in each sample was determined in triplicates and obtained results were expressed as mean value with standard deviation. The highest flavonoid content of 0.42±0.01% was found in leaves collected from the Pharmaceutical Botanical Garden “Fran Kušan” (2016) while the lowest one of 0.14±0.01% was detected in leaves from Našice (2014). These result correlate with content of rosmarinic acid and previously reported antiaggregatory effect Melissa officinalis leaf extracts [2]. Results vary between herbal drugs collected in different years and on different locations and are highly susceptible to weather conditions, heat, humidity, plant pathogens, air quality, etc.
Izvorni jezik
Engleski
Znanstvena područja
Kemija, Biologija, Farmacija
