Investigation of eco-friendly casein fibre production methods

Bier, Mário César Jucoski; Kohn, Sophia; Stierand, A; Grimmelsmann, Nils; Homburg, Sarah Vanessa; Rattenholl, Anke; Ehrmann, Andrea

doi:10.1088/1757-899x/254/19/192004

Cited by 13 publications

(12 citation statements)

References 6 publications

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“…As depicted in Figure 5 (right panel), the surface morphology clearly changed aft er wetting the sample with a drop of water which dried on the fabric at room temperature, not washing off the coating. Th is fi nding is consistent with former experiments on casein, for which water stability could be signifi cantly increased by adding wax or paraffi n oil to the spinning solution [25]. We assume that this reduction of water solubility can be attributed to closing small pores in the coating, thus reducing the contact area between gelatine and water [26].…”

Section: Resultssupporting

confidence: 91%

Water Resistance and Morphology of Electrospun Gelatine Blended with Citric Acid and Coconut Oil

Banner¹,

Dautzenberg²,

Feldhans³

et al. 2018

TEK

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Bio-polymer gelatine can be found in a broad variety of applications, mostly in the food industry. Moreover, it is used in the encapsulation of active pharmaceutical ingredients. In electrospinning, it is used for drug release, but can also strongly infl uence the morphologies of nanofi ber mats when blended with other polymers. In a recent project, we studied the infl uence of adding citric acid and coconut oil to gelatine electrospinning solutions. While the former can be used to modify gelatine nanofi ber diameters and create diverse morphologies between the fi bres and sprayed droplets of diff erent shapes, the latter results in an electrospraying process and additionally increases water resistance, suggesting a possible use of the combination for tailored drug release.

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Section: Resultssupporting

confidence: 91%

Water Resistance and Morphology of Electrospun Gelatine Blended with Citric Acid and Coconut Oil

Banner¹,

Dautzenberg²,

Feldhans³

et al. 2018

TEK

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“…casein, for electrospinning. Casein was chosen since it can simply be gained from waste milk and is thus abundantly available [29]. In addition, casein is known to be electrospinnable with diff erent materials as spinning agents [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Chemical and Morphological Modification of PAN Nanofibrous Mats with Addition of Casein after

Diestelhorst¹,

Mance²,

Mamun³

et al. 2020

TEK

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Electrospun polyacrylonitrile (PAN) nanofi brous mats belong to typical precursor materials of carbon nanofibres. They have, however, the problem that they need to be fi xed or even stretched during stabilisation and ideally also during carbonisation in order to avoid undesired conglutinations and deformations of the original nanofi bre morphology, resulting in brittle behaviour of the macroscopic nanofi brous mat, which impedes several applications. In an earlier investigation, blending PAN with ZnO was shown to increase fi bre diameters and lead to unproblematic stabilisation and carbonisation of nanofi brous mats. ZnO, on the other hand, may have a negative impact on biotechnological applications such as tissue engineering. Here, we thus report on the morphological and chemical modifi cations due to blending PAN electrospinning solutions with diff erent amounts of casein. By optimising the PAN : casein ratio, relatively thick, straight nanofibres are obtained, which can be stabilised and carbonised unambiguously, without the well-known negative impact on cell adhesion due to the addition of ZnO.Elektropredene nanovlaknate koprene iz poliakrilonitrila (PAN) predstavljajo tipične prekurzorje za izdelavo ogljikovih nanovlaken. Med stabilizacijo in po možnosti tudi med karbonizacijo morajo biti pritrjene, da bi lahko preprečili neželeno zlepljenje in deformacijo prvotne nanovlaknate oblike, ki vodi v krhkost makroskopske nanovlaknate koprene in zmanjša možnosti njene uporabe. V predhodni raziskavi je bilo ugotovljeno, da mešanje PAN z ZnO vpliva na povečanje premera vlaken in omogoči stabilizacijo ter karbonizacijo nanovlaknatih kopren. ZnO pa lahko po drugi strani negativno vpliva na biotehnološke aplikacije, kot je tkivni inženiring. V članku so zato predstavljene morfološke in kemijske modifi kacije, ki so bile dosežene z uporabo predilnih raztopin za elektropredenje PAN z dodatkom različnih količin kazeina. Z optimizacijo razmerja PAN : kazein dobimo relativno debela, ravna nanovlakna, ki jih je moč stabilizirati in karbonizirati, brez da bi zaradi dodatka ZnO prišlo do dobro znanega negativnega vpliva na celično adhezijo.

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“…In the study carried out by Bier et al, casein fibers were produced according to two different approaches, using water and heat or sodium hydroxide. In both ways, relatively flexible fibers and textile coatings were gained [10].…”

Section: Introductionmentioning

confidence: 99%

“…Their smooth structure makes them feel similar to silk, and the high moisture absorption lets the fibers swell and makes them softer and thus especially attractive for people with skin diseases. Additionally, they can easily be dyed and age only slowly [10]. Casein can also be extracted from "non-food milk", i.e.…”

Section: Introductionmentioning

confidence: 99%

Bleaching of Fabrics Produced From Casein Fibers

Sevgisunar¹,

Yavaş²

2020

Tekstil Ve Konfeksiyon

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The pH of milk fibers, which can be obtained even from the protein of sour milk, is compatible with the human body. Besides being ecological, they have biodegradable properties. In this paper the influence of different bleaching conditions with hydrogen peroxide and thioureadioxide (TUDO) on the whiteness of casein fiber fabric was investigated. Bleaching was carried out both conventionally and with microwave energy. Whiteness, bursting strength, hydrophilicity, and chemical oxygen demand (COD) values were determined and compared. The structures of the untreated and treated casein fabrics were investigated with Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The effect of bleaching on the structure of casein fabric was investigated with scanning electron microscopy (SEM). The loss of strength in milk fiber based fabrics which have been bleached with peroxide in acidic medium is less than the loss in bleaching in basic medium. Microwave energy can produce whiteness levels obtained by conventional method in much shorter periods. Strength losses are also less. The air permeability test results show that the air permeability of casein fiber based fabric samples decreases with increasing processing temperature and processing time. Careful selection of process temperature and duration is important for milk fibers as well as for wool fibers. When working with milk fibers it is recommended to test the dimension peroxide bleaching change according to the process conditions.

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Investigation of eco-friendly casein fibre production methods

Cited by 13 publications

References 6 publications

Water Resistance and Morphology of Electrospun Gelatine Blended with Citric Acid and Coconut Oil

Water Resistance and Morphology of Electrospun Gelatine Blended with Citric Acid and Coconut Oil

Chemical and Morphological Modification of PAN Nanofibrous Mats with Addition of Casein after

Bleaching of Fabrics Produced From Casein Fibers

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