The surface analysis of particles of certain wheat flours

Kemp, Ian

doi:10.1039/tf9363200837

Cited by 4 publications

(1 citation statement)

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“…Swelling would be expected to enhance transport of water to the substrate/soil interface and weaken the soil adhesion. Similarly, Otto et al (2016) reported that unbaked starch deposits are expected to become more negatively charged at high pH and therefore be repelled from stainless steel surfaces which are similarly charged under these condition (isoelectric points typically pH 4-5 for 304 stainless steel (Lefevre et al, 2009) and 5.1 for starch from wheat flowers (Kemp, 1936).…”

Section: Effect Of Phmentioning

confidence: 98%

Quantifying the effect of solution formulation on the removal of soft solid food deposits from stainless steel substrates

Cuckston¹,

Alam

Goodwin

et al. 2019

Journal of Food Engineering

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The role of detergent formulation on the cleaning of a complex carbohydrate-fat food soil from stainless steel surfaces was studied using a modified version of the millimanipulation device described by Ali et al. (2015b) which allowed the force required to scrape the soil from the surface to be measured as the soil is immersed, in situ and in real time. This allowed the influence of temperature, solution chemistry and time on the mechanical forces (rheology) and removal behaviour of the soil to be studied-in effect quantifying the relationships in Sinner's cleaning circle. The soil simulated a burnt-on baked-on deposit and featured regular cracking in the 300 m thick layer. The removal force decreased noticeably on hydration: the cleaning mechanism was then determined by the agents present. At 20C, below the temperature at which the fat phase was mobile, removal was characterised by cohesive failure except in the presence of the cationic surfactant CTAB, which promoted adhesive failure and fast decay in removal force. At 50C, when the fat was mobile, a transition between cohesive and adhesive failure was observed at pH 7 which was inhibited at higher pH. Adhesive failure and fast decay in removal force was observed at higher pH and 50C in the presence of the anionic and non-ionic surfactants, SDBS and TX-100, respectively.

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Section: Effect Of Phmentioning

confidence: 98%