Did you know ? If you order before Friday 14h we deliver 90PCT of the the time next Tuesday, GENTAUR another in time delivery

Pubmed ID :29886571
Publication Date : //

Natural food colourants derived from onion wastes: application in a yoghurt product.


The valorization of onion (Allium cepa) solid wastes, a 450,000 tonnes/year waste in Europe, by a green extraction method is presented. Polyphenols of onion solid wastes were extracted using eco-friendly solvents, such as water and glycerol. The 2-hydroxypropyl-β-cyclodextrin was also used as a co-solvent for the augmentation of the extraction yield. The process has been optimized by implementing a central composite face centered design of experiments, with two replicates in the central point, taking into consideration the following independent variables: glycerol concentration, cyclodextrin concentration and temperature. The assessment of the extraction model was based on two responses: the total pigment yield and the antiradical capacity. LC-MS analysis was also employed in order to identify polyphenols and colourants of the obtained extracts. The main polyphenols found were quercetin and quercetin derivatives and the main colourant was cyanidin 3-O-glucoside. The extract was also tested as a food colourant in a yoghurt matrix. The onion leaf extract was found to be a stable natural colourant and could be utilized as an alternative ingredient to synthetic coloring agents. This article is protected by copyright. All rights reserved.

Authors : Mourtzinos Ioannis , Prodromidis Prodromos , Grigorakis Spyros , Makris Dimitris P , Biliaderis Costas G , Moschakis Thomas ,

Related products :

Catalog number Product name Quantity
NA-AH1-1 Natural Ara h 1 FOOD ALLERGEN 250
NA-AH2-1 Natural Ara h 2 FOOD ALLERGEN 250
NA-AH6-1 Natural Ara h 6 FOOD ALLERGEN 250
NA-STM-1 Natural Shrimp Tropomyosin FOOD ALLERGEN 250
61865-02-9 1_(9_methylene Onion)_3_methylimidazoli 1_(9_methylene Onion)_ 1g
NA-STM-1 FOOD ALLERGENS Natural Shrimp Tropomyosin Affinity Purified Natural Allergens Expression System: Affinity purified 250
NA-AH1-1 FOOD ALLERGENS Natural Ara h 1 Affinity Purified Natural Allergens Expression System: Affinity purified 250
NA-AH6-1 FOOD ALLERGENS Natural Ara h 6 Affinity Purified Natural Allergens Expression System: Affinity purified 250
NA-AH2-1 FOOD ALLERGENS Natural Ara h 2 Affinity Purified Natural Allergens Expression System: Affinity purified 250
B1189 Kundrat Agar USE : For the routine qualitative detection of residues from antibiotics and other chemotherapeutic agents in animal-derived food. 5x500gm
ILE-SCG26 Food IgG ELISA 2 Specific IgG MultiScreen, Nutritional, 1x 88 food antigens 1
ILE-SCG25 Food IgG ELISA 2 Specific IgG Screening, Nutritional, 3x 24 food antigens 1
ILE-SCG210 Food IgG4 ELISA 2 Specific IgG4 Screening, Nutritional, 3x 24 food antigens 1
ILE-SCG06 Food IgG4 ELISA 2 Specific IgG4 Screening, Nutritional, 4x 20 food antigens 1
ILE-SCG80 Food IgG4 ELISA 2 Specific IgG4 MultiScreen, Nutritional, 1x 88 food antigens 1
PLR-1092 Onion Total RNA 50
PLD-1092 Onion cDNA 30 reactions
PLG-1092 Onion Genomic DNA 100
PLG-1092 Onion Genomic DNA 100µg
PLR-1092 Onion Total RNA 50µg
PLR-1092 Onion Total RNA 0.05mg
PLG-1092 Onion Genomic DNA 0.1mg
PLT1092 Onion Total Protein 0.5mg
PLT-1092 Onion Total Protein 0.5mg
PLG-1092 Plant Genomic DNA Onion 100µg


 

GENTAUR Belgium BVBA BE0473327336
Voortstraat 49, 1910 Kampenhout BELGIUM
Tel 0032 16 58 90 45

Fax 0032 16 50 90 45
info@gentaur.com | Gentaur





GENTAUR Ltd.
Howard Frank Turnberry House
1404-1410 High Road
Whetstone London N20 9BH
Tel 020 3393 8531 Fax 020 8445 9411
uk@gentaur.com | Gentaur

 

 




GENTAUR France SARL
9, rue Lagrange, 75005 Paris
Tel 01 43 25 01 50

Fax 01 43 25 01 60
RCS Paris B 484 237 888

SIRET 48423788800017

BNP PARIBAS PARIS PL MAUBERT BIC BNPAFRPPPRG

france@gentaur.com | Gentaur

GENTAUR GmbH
Marienbongard 20
52062 Aachen Deutschland
Support Karolina Elandt
Tel: 0035929830070
Fax: (+49) 241 56 00 47 88

Logistic :0241 40 08 90 86
Bankleitzahl 39050000
IBAN lautet DE8839050000107569353
Handelsregister Aachen HR B 16058
Umsatzsteuer-Identifikationsnummer *** DE 815175831
Steuernummer 201/5961/3925
de@gentaur.com | Gentaur

GENTAUR U.S.A
Genprice Inc, Logistics
547, Yurok Circle
San Jose, CA 95123
CA 95123
Tel (408) 780-0908,
Fax (408) 780-0908,
sales@genprice.com

Genprice Inc, Invoices and accounting
6017 Snell Ave, Ste 357
San Jose, CA 95123




GENTAUR Nederland BV
NL850396268B01 KVK nummer 52327027
Kuiper 1
5521 DG Eersel Nederland
Tel:  0208-080893  Fax: 0497-517897
nl@gentaur.com | Gentaur
IBAN: NL04 RABO 0156 9854 62   SWIFT RABONL2U






GENTAUR Spain
tel:0911876558
spain@gentaur.com | Gentaur






ГЕНТАУЪР БЪЛГАРИЯ
ID # 201 358 931 /BULSTAT
София 1000, ул. "Граф Игнатиев" 53 вх. В, ет. 2
Tel 0035924682280 Fax 0035924808322
e-mail: Sofia@gentaur.com | Gentaur
IBAN: BG11FINV91501014771636
BIC: FINVBGSF

GENTAUR Poland Sp. z o.o.


ul. Grunwaldzka 88/A m.2
81-771 Sopot, Poland
TEL Gdansk 058 710 33 44 FAX  058 710 33 48              

poland@gentaur.com | Gentaur

Other countries

Österreich +43720880899

Canada Montreal +15149077481

Ceská republika Praha +420246019719

Danmark +4569918806

Finland Helsset +358942419041

Magyarország Budapest +3619980547

Ireland Dublin+35316526556

Luxembourg+35220880274

Norge Oslo+4721031366

Sverige Stockholm+46852503438

Schweiz Züri+41435006251

US New York+17185132983

GENTAUR Italy
SRL IVA IT03841300167
Piazza Giacomo Matteotti, 6
24122 Bergamo Tel 02 36 00 65 93
Fax 02 36 00 65 94
italia@gentaur.com | Gentaur