Naslov
The application of aronia as acid-base indicator

Autori
Grgić, Marta ; Pejić, Anja ; Amić, Ana

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

Izvornik
Zbornik sažetaka 11. Simpozija s međunarodnim sudjelovanjem Kopački rit - Jučer, danas, sutra 2022. / - , 2022, 72-72

Skup
11. simpozij s međunarodnim sudjelovanjem: Kopački rit - jučer, danas, sutra = 11h Symposium with International Participation: Kopački rit - past, present, future

Mjesto i datum
Osijek, Hrvatska, 29.09.2022. - 30.09.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
chokeberry ; acid-base indicators ; school ; green chemistry

Sažetak
Chokeberry (Aronia) is a genus of deciduous shrubs in the family Rosacea, and inhabits acidic and moist soils. In nature, it may be found in woods and swamps. It can be recognized by its dark berries that have various beneficial health effects. Also, berries contain compounds that change colour of the medium depending on the pH (red, pink, purple, yellow, green), hence could be used as an alternative acid-base indicator. Here, we used fresh and dry chokeberries for preparation of such indicators. The aim of this work was to determine shelf life of such indicators and possibility of recycling used plant material for preparation of new indicators. Results indicate a very long shelf life of these indicators and used plant material. Here prepared indicators have many advantages – low price, long shelf life, easy preparation, simple storage, recyclability. Since there was no waste in the preparation of indicators and plant material can be recycled, and solvent used in the preparation was water, we can say that these indicators are green. Hence, chokeberry could be used in chemistry classroom by helping the students to connect lectures on indicators, acids and bases with everyday life, making understanding and learning of these lessons much easier.

Izvorni jezik
Hrvatski, engleski

Znanstvena područja
Kemija

POVEZANOST RADA