Indicatori a Base Di Erbe Di Origine Naturale (Paperback)
Language: Italian
Published by Edizioni Sapienza, 2026
- Softcover
- New
Seller: Grand Eagle Retail, Bensenville, IL, U.S.A.Grand Eagle Retail
AbeBooks seller since October 12, 2005
Condition: New
£ 50.25
Quantity: 1 available
Add to basketItem description from seller
Paperback. Introduzione: Gli indicatori vegetali sono sostanze presenti in natura, derivate da fonti vegetali, che presentano cambiamenti di colore distinti in risposta alle variazioni del pH o dell'ambiente chimico. Questi indicatori di origine vegetale rappresentano alternative ecologiche, biodegradabili e non tossiche agli indicatori chimici sintetici tradizionalmente utilizzati nella chimica analitica e nelle titolazioni.Fonti degli indicatori vegetali: Tra le piante comuni che fungono da fonti di indicatori figurano: Hibiscus rosa-sinensis (ibisco), Rosa indica (rosa), Beta vulgaris (barbabietola), Brassica oleracea (cavolo rosso), Curcuma longa (curcuma), Clitoria ternatea (pisello farfalla). Queste piante contengono pigmenti naturali quali antociani, flavonoidi, betalaine e curcuminoidi che subiscono cambiamenti visibili in presenza di diverse condizioni di pH. Meccanismo d'azione: Il cambiamento di colore negli indicatori a base di erbe e dovuto alla trasformazione strutturale delle molecole dei pigmenti in condizioni acide o basiche. Gli antociani (presenti nel cavolo rosso, nell'ibisco e nella rosa) passano dal rosso (in ambiente acido) al viola/blu (in ambiente neutro) fino al verde/giallo (in ambiente basico). La curcumina (derivata dalla curcuma) e gialla in ambiente acido/neutro e assume una tonalita bruno-rossastra in ambiente basico.Applicazioni nella ricerca. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…
Seller Inventory # 9786630198621
- Title
- Indicatori a Base Di Erbe Di Origine Naturale (Paperback)
- Author
- MR S.G. Raman
- Publisher
- Edizioni Sapienza
- Publication year
- 2026
- Condition
- new
- Binding
- Paperback
- Language
- Italian
- ISBN 10
- 663019862X
- ISBN 13
- 9786630198621
"Synopsis" may belong to another edition of this title.
Grand Eagle Retail
Bensenville, IL, U.S.A.
AbeBooks seller since October 12, 2005
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