[article]
| Titre : |
Green raw material & product preservation : Sustainable, readily biodegradable preservation is key for consumer products, as well as their components |
| Type de document : |
texte imprimé |
| Auteurs : |
Amber Yarnell, Auteur ; Stephen Foster, Auteur ; Jonathan Rabiei, Auteur ; Jenna Blankenship, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 2-7 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Benzoate de sodium Le benzoate de sodium, de formule chimique (Na+ + C6H5COO-)(NaC6H5COO) est le sel de sodium de l'acide benzoïque, connu sous le nom E211 comme additif alimentaire. Soluble à raison de 640 parts pour 1000 d'eau à 25 °C. Il précipite en présence d'un acide concentré (ex.: l'acide sulfurique concentré) en donnant de l'acide benzoïque (très peu soluble dans l'eau) dont on peut analyser plus facilement le point de fusion. Sa dissolution aqueuse engendre une augmentation du pH.
L'acide benzoïque est produit industriellement selon 3 voies :
1. Oxydation de naphtalène en anhydride phtalique en présence de catalyseur oxyde de vanadium. L'anhydride phtalique est ensuite décarboxylé produisant l'acide benzoïque.
2. Oxydation d'un mélange de toluène et d'acide nitrique produisant l'acide benzoïque.
3. Hydrolyse du trichlorobenzène produisant l'acide benzoïque.
L'acide benzoïque est ensuite dissout dans une solution d'hydroxyde de sodium pour former du benzoate de sodium.
Le benzoate de sodium est utilisé comme conservateur alimentaire, autorisé sous condition et référencé en Europe sous le code E211.
Détergents -- Biodégradation
Formulation (Génie chimique)
Matières premières
Produits nettoyants
Vaisselle -- Nettoyage
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
What does the word “sustainable” mean to the everyday consumer? While it’s clear that sustainability is growing in importance for home care and consumer products, the term can encompass a number of different considerations; biodegradability, ingredient origin, ethical sourcing, safety, potential hazards, and eco-friendly packaging are all critical aspects that can impact whether a product is perceived as a green choice (Figure 1).
Green labels are increasing in popularity, as they make it easier for consumers to decipher which products align with their personal values and find them on store shelves. While the criteria for each green label certification is different, they each look at certain factors to determine which products meet standards for sustainability. Ingredient selection is an important part of the process of applying for a green label certification, and many programs use approved or restricted ingredient lists to provide guidance to manufacturers seeking certification. |
| Note de contenu : |
- The importance of ready biodegradability
- Sodium benzoate and biodegradability
- Preserving raw materials to enhance product sustainability
- Reformulating for sustainability & biodegradability
- Conclusions : preservatives protect consumers and brands
- Fig. 1: Household products launched between 2016 – 2021 (1st half) boasted label claims of stainability and human, animal, and environmental safety
- Fig. 2 : Biodegradability rates, classifications, and examples
- Fig. 3 : Overview of some biodegradation mechanisms of benzoates. Top: anaerobic pathway intermediate; Bottom : aerobic pathway intermediates. Intermediates undergo enzymatic ring opening and subsequent reactions result in breakdown products that enter into the
citric acid cycle
- Fig. 4 : Standard hand dish wash formula with 1.0% sodium benzoate, 5 ppm CIT/MIT, and 0.5% tetrasodium EDTA
- Fig. 5 : Reformulated hand dish wash containing readily biodegradable ingredients: 1.0% sodium benzoate and 0.5% GLDA
- Table 1 : A standard hand dish wash formula: Though the product is preserved with readily biodegradable sodium benzoate, the formula
included the addition of slow-degrading tetrasodium EDTA, and the
unintentional presence of the inherently biodegradable & sensitizing
CIT/MIT by way of surfactant.
- Table 2 : Modified hand dish formula: CIT/MIT and EDTA were removed from the formula, resulting in a formulation comprised of readily biodegradable, sustainable ingredients with a more consumer-friendly label |
| En ligne : |
https://drive.google.com/file/d/11F5TVGdlXLl4EiLojyE7lNDoel3_jvdY/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36549 |
in SOFW JOURNAL > Vol. 147, N° 10 (10/2021) . - p. 2-7
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Green raw material & product preservation in SOFW JOURNAL, Vol. 147, N° 10 (10/2021)
