1 research outputs found
pH-ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΡΠ΅ ΡΡΠ΅Π΄ΠΎΠ±Π½ΡΠ΅ ΠΏΠ»Π΅Π½ΠΊΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π±ΠΈΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ° ΠΊΠ°Π·Π΅ΠΈΠ½Π°Ρ Π½Π°ΡΡΠΈΡ/Π°Π³Π°Ρ-Π°Π³Π°Ρ
In the modern world, shelf life extension of foods with a possibility of controlling their freshness and quality in real time is gaining increasing importance. To solve this task, the development of pH-sensitive films based on edible biopolymers with addition of anthocyans as a color indicator can be proposed. For this experiment, sodium caseinate/ agar-agar biocomposite films with different content of anthocyans from black carrot (Scorconera hispanica) in a range of 0 to 15 mass% in increments of 5 mass% were prepared. It was established that the anthocyan content did not affect the thickness and moisture content of the films; however, it significantly reduced their moisture absorption and transparence. Water vapor permeability of the biocomposite films increased with an increase in the content of the aqueous extract of anthocyans from black carrot, which can be linked with the formation of pores and microcracks in the biocomposite matrix. All films with anthocyans showed changes in color depending on the environmental pH, which intensities depended on the anthocyan content. Edible films based on the mixture of sodium caseinate and agar-agar can potentially be used in the food industry to determine freshness of foods, which spoilage results in pH changes.Π ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΌ ΠΌΠΈΡΠ΅ Π²ΡΠ΅ Π±ΠΎΠ»ΡΡΠ΅Π΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΠΏΡΠΈΠΎΠ±ΡΠ΅ΡΠ°Π΅Ρ ΠΏΡΠΎΠ΄Π»Π΅Π½ΠΈΠ΅ ΡΡΠΎΠΊΠ° Π³ΠΎΠ΄Π½ΠΎΡΡΠΈ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠ°Π½ΠΈΡ Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡΡ ΠΊΠΎΠ½ΡΡΠΎΠ»Ρ ΠΈΡ
ΡΠ²Π΅ΠΆΠ΅ΡΡΠΈ ΠΈ ΠΊΠ°ΡΠ΅ΡΡΠ²Π° Π² ΡΠ΅ΠΆΠΈΠΌΠ΅ ΡΠ΅Π°Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ. ΠΠ»Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΡΡΠΎΠΉ Π·Π°Π΄Π°ΡΠΈ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ-ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΠΏΠ»Π΅Π½ΠΎΠΊ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΡΠ΅Π΄ΠΎΠ±Π½ΡΡ
Π±ΠΈΠΎΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠΎΠ² Ρ Π΄ΠΎΠ±Π°Π²ΠΊΠΎΠΉ Π°Π½ΡΠΎΡΠΈΠ°Π½ΠΎΠ² Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΡΠ²Π΅ΡΠΎΠ²ΠΎΠ³ΠΎ ΠΈΠ½Π΄ΠΈΠΊΠ°ΡΠΎΡΠ°. ΠΠ»Ρ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ Π΄Π°Π½Π½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π±ΡΠ»ΠΈ ΠΏΡΠΈΠ³ΠΎΡΠΎΠ²Π»Π΅Π½Ρ ΠΏΠ»Π΅Π½ΠΊΠΈ Π±ΠΈΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ° ΠΊΠ°Π·Π΅ΠΈΠ½Π°Ρ Π½Π°ΡΡΠΈΡ/Π°Π³Π°Ρ-Π°Π³Π°Ρ Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ Π°Π½ΡΠΎΡΠΈΠ°Π½ΠΎΠ² ΡΠ΅ΡΠ½ΠΎΠΉ ΠΌΠΎΡΠΊΠΎΠ²ΠΈ (Scorconera hispanica) 0β15 ΠΌΠ°ΡΡ.% Ρ ΡΠ°Π³ΠΎΠΌ 5 ΠΌΠ°ΡΡ.%. ΠΡΠ»ΠΎ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ Π°Π½ΡΠΎΡΠΈΠ°Π½ΠΎΠ² Π½Π΅ Π²Π»ΠΈΡΠ΅Ρ Π½Π° ΡΠΎΠ»ΡΠΈΠ½Ρ ΠΈ Π²Π»Π°Π³ΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΠΏΠ»Π΅Π½ΠΎΠΊ, ΠΎΠ΄Π½Π°ΠΊΠΎ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ½ΠΈΠΆΠ°Π΅Ρ ΠΈΡ
Π²Π»Π°Π³ΠΎΠΏΠΎΠ³Π»ΠΎΡΠ΅Π½ΠΈΠ΅ ΠΈ ΠΏΡΠΎΠ·ΡΠ°ΡΠ½ΠΎΡΡΡ. ΠΠ°ΡΠΎΠΏΡΠΎΠ½ΠΈΡΠ°Π΅ΠΌΠΎΡΡΡ ΠΏΠ»Π΅Π½ΠΎΠΊ Π±ΠΈΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ° Π²ΠΎΠ·ΡΠΎΡΠ»Π° Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ Π²ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΠΊΡΡΡΠ°ΠΊΡΠ° Π°Π½ΡΠΎΡΠΈΠ°Π½ΠΎΠ² ΡΠ΅ΡΠ½ΠΎΠΉ ΠΌΠΎΡΠΊΠΎΠ²ΠΈ, ΡΡΠΎ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΠ²ΡΠ·Π°Π½ΠΎ Ρ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΠΎΡ ΠΈ ΠΌΠΈΠΊΡΠΎΡΡΠ΅ΡΠΈΠ½ Π² ΠΌΠ°ΡΡΠΈΡΠ΅ Π±ΠΈΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ°. ΠΡΠ΅ ΠΏΠ»Π΅Π½ΠΊΠΈ Ρ Π°Π½ΡΠΎΡΠΈΠ°Π½Π°ΠΌΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠ²Π΅ΡΠ° Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΠ ΡΡΠ΅Π΄Ρ, ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΡ ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ Π·Π°Π²ΠΈΡΠ΅Π»Π° ΠΎΡ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ Π°Π½ΡΠΎΡΠΈΠ°Π½ΠΎΠ². Π‘ΡΠ΅Π΄ΠΎΠ±Π½ΡΠ΅ ΠΏΠ»Π΅Π½ΠΊΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠΌΠ΅ΡΠΈ ΠΊΠ°Π·Π΅ΠΈΠ½Π°ΡΠ° Π½Π°ΡΡΠΈΡ ΠΈ Π°Π³Π°Ρ-Π°Π³Π°ΡΠ° ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ Π² ΠΏΠΈΡΠ΅Π²ΠΎΠΉ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ Π΄Π»Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠ²Π΅ΠΆΠ΅ΡΡΠΈ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ², Π² ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΠΏΠΎΡΡΠΈ ΠΊΠΎΡΠΎΡΡΡ
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