PARTNERS

Natural emulsifiers from olive oil waste product

Spanish Researchers have developed a saving way to make high quality, natural emulsifiers and other valuable additives using the waste product from olive oil production.

The aim of this work, published in the journal Bioresource Technology, was to demonstrate the effectiveness of hydrolysis pretreatment of olive mill (OMW) waste before use as a carbon source in biosurfactant production by fermentation. Three hydrolysis methods were assessed: enzymatic hydrolysis, acid pretreatment plus enzymatic hydrolysis, and acid hydrolysis. Fermentation was carried out using two bacterial species: Pseudomonas aeruginosa and Bacillus subtilis.

The results showed that the enzymatic hydrolysis was the best pretreatment, yielding up to 29.5 and 13.7 mg/L of rhamnolipids and surfactins respectively. Glucose did not show significant differences in comparison to enzymatically hydrolysed OMW. At the best conditions found rhamnolipids and surfactins reached concentrations of 299 and 26.5 mg/L; values considerably higher than those obtained with non-hydrolysed OMW. In addition, enzymatic pretreatment seemed to partially reduce the inhibitory effects of OMW on surfactin production. Therefore, enzymatic hydrolysis proved to effectively increase the productivity of these biosurfactants using OMW as the sole carbon source.

LATEST NEWS

Regulation EU 2024/1451 as regards certain food additives

  Commission Regulation (EU) 2024/1451 of 24 May 2024 amending Annex II and Annex III to Regulation (EC) No 1333/2008 of the European Parliament and of the Council as...

Enoberg celebrates 40 years!

  1984-2024: a story of courage and passion   In 2024 ENOBERG blows out 40 candles. An important achievement that rewards the commitment, professionalism and determination of those...

Regulation EU 2024/1439 as regards maximum residue levels for certain pesticides in food

    Commission Regulation (EU) 2024/1439 of 24 May 2024 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as...

ASCOLTATE IL PODCAST DI "ALIMENTI FUNZIONALI"

DOVE TROVARE LE NOSTRE RIVISTE

8-12/09/2024, RIMINI
24-26/09/2024 - NORIMBERGA, GERMANIA
9-12/10/2024 - MILANO
16-17/10/2024 - VERONA
5-7/11/2024 - DUBAI, EAU
6-7/11/2024 LA ROCHELLE, FRANCIA
12-15/11/2024 MILANO
18-20/11/2024 - SAHANGHAI, CINA
19-21/11/2024 - FRANCOFORTE, GERMANIA
24-26/11/2024 - NORIMBERGA, GERMANIA
26-28/11/2024 BORDEAUX, FRANCIA
18-22/01/2025 - RIMINI
2-5/02/2025 - COLONIA, GERMANIA
5-7/02/2025 - BERLIN, GERMANIA
16-18/02/2025 - RIMINI
23-25/02/2025 - BOLOGNA
16-18/03/2025 - DÜSSELDORF, GERMANIA
18-22/05/2025 - DÜSSELDORF, GERMANIA
27-30/05/2025 - MILANO

CATALOGO LIBRI

CATALOGO RIVISTE