This work was performed through the Partnerships [621169]
This work was performed through the Partnerships
Program inpriority areas -PNII,developed with thesupport of
MEN -UEFISCDI, project No.170/2014
“Electromagnetic methods toimprove processes wine”
OBJECTIVES
1.The influences of High Frequency Electromagnetic
Field treatment on thephysical -chemical properties of wines
2. The influences of ofHigh Frequency Electromagnetic
Field treatment on thetotal polyphenol content from wines
Muscat Ottonel (MO)
Pinot Noir (PN)
Merlot (M)
Theoretical Aspects
THEORETICAL ASPECTS
BIOACTIVE COMPOUNDS OF GRAPE
Phenolic compounds of grapes belong from different
classes , including :
•phenolic acids (hydroxybenzoic acids and
hydroxycinnamic acids )
•flavonoids (catechin ,flavanols or flavan -3-ols,
proanthocyanidins , flavones , and flavonols )
•stilbenes
which have been reported as responsible for multiple
biological effects .
(Int. J. Mol. Sci. 2014 )
THE CHEMICAL STRUCTURES OF SOME PHENOLIC COMPOUNDS
FROM GRAPES
Why theflavonoids are important ?
www.akspublication.com
EXPERIMENTAL
DESIGN
•Power: 200 W
•Temperatur e: 64 -68.8 0C
•Time: 6 minuteGrapes
Crushing
Point 1
Pressing
FermentationSelected
Yeast
Point 2
High -Frequency Field
MASH
WINE
pH
Titratable Acidity
01234567
Mash Mash MW* Wine Wine MW* 2.9813.1443.7874.6445.055
4.7166.645
6.288
4.912
3.0016.645 6.645g tartric acid/LMUSCAT OTONEL
PINOT NOIR
MERLOT
250 300 350 400 450 500 550 600 650 700 750 8000.00.10.20.30.40.50.6Vin_MO
lungime de unda (nm) Vin_MO
Vin_MO_mW
Muscat Ottonel
250 300 350 400 450 500 550 600 650 700 750 8000.00.10.20.30.40.50.6Vin_PN
lungime de unda (nm) Vin_PN
Vin_PN_mW
Pinot Noir
250 300 350 400 450 500 550 600 650 700 750 8000.00.10.20.30.40.50.6Absorbanta (u.a.)
lungime de unda (nm) Vin_M
Vin_M_mW
Merlot
Phenolic acid derivatives = 280 nm
Flavonoids = 280, 340 nm
Carotenoids = 410 -470 nm
Anthocyanins = 520 -535 nm
Chlorophylls = 647, 663 nm
UV-Vis Spectrometric Fingerprint (250 -750 nm)
0200400600800100012001400
Mustuiala Mustuiala MW* Vin Vin MW*mg GAE/LMUSCAT OTONEL
PINOT NOIR
MERLOTTOTAL POLYPHENOLS CONTENT
CONCLUSION
Our results show that using THE HIGH FREQUENCY
ELECTROMAGNETIC FIELD in the first step of wine technology,
has as results a better quality wine from the point of view of
polyphenolic content!
Copyright Notice
© Licențiada.org respectă drepturile de proprietate intelectuală și așteaptă ca toți utilizatorii să facă același lucru. Dacă consideri că un conținut de pe site încalcă drepturile tale de autor, te rugăm să trimiți o notificare DMCA.
Acest articol: This work was performed through the Partnerships [621169] (ID: 621169)
Dacă considerați că acest conținut vă încalcă drepturile de autor, vă rugăm să depuneți o cerere pe pagina noastră Copyright Takedown.