Efficient improvement of surface activity of tea saponin through Gemini-like modification by straightforward esterification

Feng, Jia‐Xun; Chen, Ying; Liu, Xin; Liu, Songbai

doi:10.1016/j.foodchem.2014.08.125

Cited by 33 publications

(20 citation statements)

References 17 publications

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“…In addition, the asymmetric and symmetric stretching of the COC bond were located at 1131 and 1049 cm −1 , respectively. This result agrees well with those of previous studies (Feng et al, ; Jian, Liao, Zhu, Zhang, & Jiang, ).…”

Section: Resultssupporting

confidence: 94%

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Synthesis of Natural Tea‐Saponin‐Based Succinic Acid Sulfonate as Anionic Foaming Agent

Zhao

Deng

Wang

et al. 2018

J Surfact & Detergents

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Tea saponin (TS) is a relatively inexpensive natural nonionic surfactant extracted from parts of tea plants, which can be modified into an anionic surfactant to achieve better surface activity. In this paper, the synthesis of TS‐based succinic acid sulfonate as an anionic foaming agent is described. TS used as the hydrophobic source was modified by maleic anhydride (MAH) and then reacted with sodium bisulfite. Orthogonal experiment of a 2‐step reaction was designed and performed, resulting in 9 kinds of succinic acid tea‐saponin sulfonate (STS). 4‐Dimethylaminopyridine and tetrabutylammonium bromide were, respectively, used as catalyst for the esterification with MAH and the sulfonation with sodium bisulfite. During the synthesis process, N,N‐dimethylformamide was employed as the solvent and ethyl acetate as the extractant. The molecular structure of STS was confirmed by infrared spectroscopy and mass spectrometry. The foaming property of STS was investigated through comparison with different kinds of common surfactants. The results show great prospects of these environmentally friendly anionic surfactants.

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Section: Resultssupporting

confidence: 94%

“…Li, Xu, and Kang (2012) worked out a kind of quaternary ammonium salt modified by TS. Feng, Chen, Liu, and Liu (2015) studied the straightforward esterification of TS.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Natural Tea‐Saponin‐Based Succinic Acid Sulfonate as Anionic Foaming Agent

Zhao

Deng

Wang

et al. 2018

J Surfact & Detergents

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“…[43] Proteins and phospholipids are important amphiphilic molecules, and own good interfacial activity and emulsifying characteristics. [45] The content of tea saponins reached up to 38.8% of total emulsifiers, which was the highest in those natural emulsifiers of the emulsified oil. Seeds.…”

Section: Natural Emulsifiers Had Excellent Emulsifying Capacitymentioning

confidence: 93%

A Novel Aqueous Extraction for Camellia Oil by Emulsified Oil: A Frozen/Thawed Method

Yang

Wang³

et al. 2019

Euro J Lipid Sci & Tech

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Emulsion is inevitable during the aqueous extraction of oil from oilseeds. In this study, a new aqueous extraction method for camellia oil is investigated. During the extraction, the emulsified oil is collected, frozen, and thawed, and the free oil is obtained (AEEF). The optimal processing conditions are as follows: three times as much water as camellia seed powder (w/w), grinding at 70 °C for 6 min, repeating 2 cycles to collect the emulsified oil; then the emulsified oil is frozen (−20 °C) /thawed (50 °C) for 2 cycles. The yield of camellia oil is 89.37 ± 0.51%, which is significantly higher (p < 0.05) than that of microwave‐assisted aqueous enzymatic extraction (MAAEE, 83.05 ± 1.14%), and is similar to that of cold press extraction (CPE, 90.85 ± 2.05%), as well as solvent extraction (SE) coupled with refining. Additionally, the total oxidation value (TOTOX) of the free oil extracted by using AEEF (AEEF‐Oil, 6.82 ± 0.12%) is significantly lower (p < 0.05) than those of MAAEE, CEP, or SE. In comparison to SE‐Oil and CEP‐Oil, AEEF‐Oil has higher (p < 0.05) contents of α‐tocopherol and squalene, and lower (p < 0.05) benzo(a)pyrene contents, and contains more favorable natural volatile compounds. The results indicate that the novel AEEF may be a promising aqueous extraction method. Practical Application: The novel aqueous extraction method for camellia oil by emulsified oil – frozen/thawed has acceptable oil yields. The obtained camellia oil has high levels of bioactive components, low contents of hazardous substances, and more characteristic volatile flavor compounds. AEEF is an improved aqueous extraction technology for edible oil without refining and using n‐hexane, which could be potentially applied in industrial production of camellia oil due to its safety, nutrition, and environment‐friendly treatments. Aqueous extraction is a promising technique for edible oil extraction from oilseeds. The novel technology of aqueous extraction for camellia oil through emulsified oil – frozen/thawed (AEEF) is investigated. In comparison to solvent extraction, cold press extraction, and microwave‐assisted aqueous enzymatic extraction of camellia oil, the obtained camellia oil by AEEF has an acceptable oil yield, high quality, and nutritional value. AEEF is a safe, simple and environmental‐friendly aqueous extraction technology.

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“…extraction yield and transparency) and the variables. Using Design‐Expert 8.0.6 software (Stat‐Ease, Inc. Minneapolis, MN, USA), a 4 Box–Behnken design (BBD) was employed to optimise the CSS extraction conditions. The four main independent variables in this study were the extraction temperature ( A ), extraction time ( B ), ethanol concentration ( C ), and liquid–solid ratio ( D ), which were coded at three levels (Table ).…”

Section: Methodsmentioning

confidence: 99%

“…assamica (ca.10% to 20%), which is a natural non‐ionic surfactant with emulsifying, foaming and dispersing properties. Reports have revealed that tea seed saponin possesses the biological activities of antimicrobial, antioxidant, etc . Surfactants are the main effective ingredients in detergents, and linear alkylbenzene sulfonate (LAS) and sodium dodecyl sulfate (SDS) are now the world's most commonly used synthetic surfactants in both industrial and household detergents .…”

Section: Introductionmentioning

confidence: 99%

Optimisation of saponin extraction conditions with Camellia sinensis var. assamica seed and its application for a natural detergent

Gong

Huang

et al. 2017

J Sci Food Agric

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Efficient improvement of surface activity of tea saponin through Gemini-like modification by straightforward esterification

Cited by 33 publications

References 17 publications

Synthesis of Natural Tea‐Saponin‐Based Succinic Acid Sulfonate as Anionic Foaming Agent

Synthesis of Natural Tea‐Saponin‐Based Succinic Acid Sulfonate as Anionic Foaming Agent

A Novel Aqueous Extraction for Camellia Oil by Emulsified Oil: A Frozen/Thawed Method

Optimisation of saponin extraction conditions with Camellia sinensis var. assamica seed and its application for a natural detergent

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