Preparation of submicron capsules containing fragrance and their application as emulsifier

Ji, Zhi Xiang; Tang, Yang; Wang, Chenyang; Yang, Jisheng

doi:10.1007/s00289-020-03186-4

Cited by 8 publications

(6 citation statements)

References 31 publications

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“…Fragrance encapsulates are a technology to protect fragrance components from evaporation and degradation (Ji et al, 2021 ) and are reported to be mainly used in laundry care products (European Chemicals Agency, 2019 ). According to sales data, >95% of FEs are used in laundry detergents and fabric softeners.…”

Section: Methodsmentioning

confidence: 99%

Country-Specific Environmental Risks of Fragrance Encapsulates Used in Laundry Care Products

Cai

Lin

Gimeno³

et al. 2021

Environmental Toxicology and Chemistry

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Fragrance encapsulates (FEs) are designed to deliver fragrance components, notably in laundry care products. They are made of thermoset polymeric shells surrounding the fragrance content. These materials enter the environment mainly during laundry washing, but little is known about their distribution in and impact on the environment. The aim of the present study was to estimate the environmental concentrations of FE shells in freshwater, sediment, and soil compartments for 34 selected countries and to compare them with ecotoxicological effects. Probabilistic material flow analysis was used to estimate worst-case predicted environmental concentrations (PECs). The lowest freshwater PEC was predicted for Finland (0.00011 µg/L) and the highest for Belgium (0.13 µg/L). Accumulation of FE shells between 2010 and 2019 was considered for sediments and sludge-treated soils. The PECs in sediments ranged from 3.0 µg/kg (Finland) to 3400 µg/kg (Belgium). For sludge-treated soil, the concentration was estimated to be between 0 (Malta and Switzerland) and 3600 µg/kg (Vietnam). Ecotoxicological tests showed no effects for FE shells at any tested concentration (up to 2700 µg/L freshwater, 5400 µg/kg sediment, and 9100 µg/kg soil), thus not allowing derivation of a predicted-no-effect concentration (PNEC). Therefore, to characterize the environmental risks, the PEC values were compared with highest-observed-no-effect concentrations (HONECs) derived from ecotoxicological tests. The PEC/HONEC ratios were 9.3 × 10 -6 , 0.13, and 0.04 for surface waters, sediments, and sludge-treated soils, respectively, which are much below 1, suggesting no environmental risk. Because the PEC values constitute an upper boundary (no fate considered) and the HONEC values represent a lower boundary (actual PNEC values based on NOECs will be higher), the current risk estimation can be considered a precautionary worst-case assessment.

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Section: Methodsmentioning

confidence: 99%

Country-Specific Environmental Risks of Fragrance Encapsulates Used in Laundry Care Products

Cai

Lin

Gimeno³

et al. 2021

Environmental Toxicology and Chemistry

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“…However, chemical methods are generally preferred for synthetic polymers, since, in most cases, they are more effective in controlling the size, the shape of the capsules and assuring a high loading capacity and encapsulation efficiency [ 16 , 26 ]. These methods include in situ polymerisation, emulsion polymerisation and interfacial polymerisation [ 27 , 28 , 29 ]. Recently, a new approach has been proposed based on the free-radical crosslinking copolymerisation of a double oil-in-water-in-oil (O/W/O) emulsion to prepare synthetic polymeric capsules encapsulating fragrances.…”

Section: Methods Of Preparation For Micro/nanoencapsulation Of Flamentioning

confidence: 99%

Encapsulation of Flavours and Fragrances into Polymeric Capsules and Cyclodextrins Inclusion Complexes: An Update

2020

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Flavours and fragrances are volatile compounds of large interest for different applications. Due to their high tendency of evaporation and, in most cases, poor chemical stability, these compounds need to be encapsulated for handling and industrial processing. Encapsulation, indeed, resulted in being effective at overcoming the main concerns related to volatile compound manipulation, and several industrial products contain flavours and fragrances in an encapsulated form for the final usage of customers. Although several organic or inorganic materials have been investigated for the production of coated micro- or nanosystems intended for the encapsulation of fragrances and flavours, polymeric coating, leading to the formation of micro- or nanocapsules with a core-shell architecture, as well as a molecular inclusion complexation with cyclodextrins, are still the most used. The present review aims to summarise the recent literature about the encapsulation of fragrances and flavours into polymeric micro- or nanocapsules or inclusion complexes with cyclodextrins, with a focus on methods for micro/nanoencapsulation and applications in the different technological fields, including the textile, cosmetic, food and paper industries.

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“…Nazha's goal was to offer a low‐cost alternative to dental imperfections. Complementing encapsulation applications, examples of submicron systems include work with nanocapsules containing osmanthus fragrance and their application as Pickering emulsifiers [148]. A sensory evaluation confirmed an enhanced fragrance retention effect.…”

Section: Sodium Alginatementioning

confidence: 99%

Trends in biopolymer science applied to cosmetics

Mendoza‐Muñoz

Leyva-Gómez

Piñón-Segundo

et al. 2023

Intern J of Cosmetic Sci

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The term biopolymer refers to materials obtained by chemically modifying natural biological substances or producing them through biotechnological processes. They are biodegradable, biocompatible and non‐toxic. Due to these advantages, biopolymers have wide applications in conventional cosmetics and new trends and have emerged as essential ingredients that function as rheological modifiers, emulsifiers, film‐formers, moisturizers, hydrators, antimicrobials and, more recently, materials with metabolic activity on skin. Developing approaches that exploit these features is a challenge for formulating skin, hair and oral care products and dermatological formulations. This article presents an overview of the use of the principal biopolymers used in cosmetic formulations and describes their sources, recently derived structures, novel applications and safety aspects of the use of these molecules.

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Preparation of submicron capsules containing fragrance and their application as emulsifier

Cited by 8 publications

References 31 publications

Country-Specific Environmental Risks of Fragrance Encapsulates Used in Laundry Care Products

Country-Specific Environmental Risks of Fragrance Encapsulates Used in Laundry Care Products

Encapsulation of Flavours and Fragrances into Polymeric Capsules and Cyclodextrins Inclusion Complexes: An Update

Trends in biopolymer science applied to cosmetics

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