Blending of low‐density polyethylene with vanillin for improved barrier and aroma‐releasing properties in food packaging

Abstract

Modification of low-density polyethylene (LDPE) with vanillin to obtain flavored packaging film with improved gas barrier and flavor-releasing properties has been studied. The modification of LDPE with vanillin was monitored by Fourier transform infrared spectroscopy, wherein the appearance of new peaks at 1704.7, 1673.6, and 1597.2 cm À1 indicates the incorporation of vanillin into LDPE matrix. Films of uniform thickness were obtained by the extrusion of modified LDPE. Modified LDPE was found to have significantly higher gas barrier properties and grease resistance. Sensory quality of food products viz, doodhpeda (milk-based solid soft sweet), biscuit, and skimmed milk powder packed in LDPE-vanillin film showed that the doodhpeda sample had clearly perceptible vanilla aroma, whereas biscuit had marginal aroma and skimmed milk powder did not have noticeable aroma. When viewed in the light of imparting desirable vanilla aroma, results of the study indicated that LDPE-vanillin film has better prospects as a packaging material for solid sweets with considerable fat content when stored under ambient conditions. The release of vanilla aroma was further confirmed by gas chromatography-mass spectrometery analysis.

Assessment of the Resistance to External Factors of Low-Density Polyethylene Modified with Natural Fillers

“…Fillers either naturally occur in a form of fine particles or are subjected to grinding. In the literature of the subject one can find numerous examples of natural fillers, including rice bran [16], banana powder [14], argan nut shell [5], vanilla [9], wood powder [4], switch grass [11], and many more.…”

Barrier Properties of Coated and Laminated Polyolefin Films for Food Packaging

“…Thus the diverse part of the material science field has many applications to food package on laboratory or industrial scale [4][5][6]. The manufacturing demands for polymer packaging films with defined barrier against gases, moisture and flavors are now very restrictive [7][8][9][10][11][12]. It is also of big interest to study the effect of irradiation on plastics packaging materials properties [13].…”

Polyimide/Graphene Nanocomposites with Improved Gas Barrier and Thermal Properties due to a “Dual‐Plane” Structure Effect

“…High‐barrier polymeric materials have attracted considerable attention in the fields of food preservation as well as pharmaceutical and flexible electronics packaging to protect them from the detrimental effects of moisture and oxygen . Recent progress in the field of flexible electronics, such as substrates for flexible organic light‐emitting diodes (FOLEDs), has led to the increased requirements of flexible polymers, including high gas barriers, high heat resistances ( T g > 300 °C), and low coefficients of thermal expansion (CTE < 20 ppm K −1 ) .…”