Marine organisms are an important source of bioactive compounds,among which marine carotenoids have garnered attention for their health benefits.Hundreds of carotenoids are extracted from different natural biomass;amo...Marine organisms are an important source of bioactive compounds,among which marine carotenoids have garnered attention for their health benefits.Hundreds of carotenoids are extracted from different natural biomass;among them marine carotenoids always have special appeal due to their unique properties.This review discusses recent literature on marine carotenoids,extraction and stabilization methods,and their applications in various industries.Green extraction techniques that use supercritical carbon dioxide(SC-CO_(2))and natural deep eutectic solvents were highlighted in addition to conventional extraction solvents.As most natural carotenoids are highly unstable,this review describes recent advances to stabilize these bioactive compounds.This work offers new insights into marine carotenoids and their potential application in the food,pharmaceutical,and cosmetic industries.展开更多
Phycoerythrin(PE)extract from red algae Laver(Pyropia dentata)was used in the fabrication of a smart pack-aging film.The PE showed pH sensitivity,implying unique color shifts at different pH.The film colors altered fr...Phycoerythrin(PE)extract from red algae Laver(Pyropia dentata)was used in the fabrication of a smart pack-aging film.The PE showed pH sensitivity,implying unique color shifts at different pH.The film colors altered from red through purple-brown to colorless with increasing pH.The smart packaging films were prepared by casting method composed of gelatin(GE),sodium alginate(SA),and cellulose nanofibrils(CNF).The films were coded as GE/SA(control),GE/SA/PE,and GE/SA/CNF/PE.The thickness of the films ranged from 0.24±0.02 mm to 0.33±0.01 mm.The mechanical properties tensile strength(TS)(12.24±0.30 MPa to 17.65±0.33 MPa)and elongation at break(EAB)(79.34%±1.02%-93.36%±0.69%)significantly increased after addition of CNF.The synthesized films showed water contact angle ranged from 84.55±2.12 to 69.41±1.21,suggesting that films were hydrophobic.The Fourier transform infrared spectroscopy(FTIR)and X-ray diffraction(XRD)analysis demonstrated strong interaction among PE,CNF,and biopolymers.The film with GE/SA/CNF/PE exhibited higher thermal stability compared with control film.Then,the films were applied for checking real time application for the freshness of salmon fish.The significant color change of the film occurred and the number of bacterial colony and TVB-N were increased from 3.81 Log CFU/g to 6.94 Log CFU/g and from 4.78 mg/100 g to 32.27 mg/100 g after incubation for 48 h.Therefore,the film with PE and CNF was intended as an excellent candidate for smart packaging film.展开更多
基金supported by the Korea Institute of Marine Science&Technology Promotion(KIMST)funded by the Ministry of Oceans and Fisheries(RS-2018-KS181195).
文摘Marine organisms are an important source of bioactive compounds,among which marine carotenoids have garnered attention for their health benefits.Hundreds of carotenoids are extracted from different natural biomass;among them marine carotenoids always have special appeal due to their unique properties.This review discusses recent literature on marine carotenoids,extraction and stabilization methods,and their applications in various industries.Green extraction techniques that use supercritical carbon dioxide(SC-CO_(2))and natural deep eutectic solvents were highlighted in addition to conventional extraction solvents.As most natural carotenoids are highly unstable,this review describes recent advances to stabilize these bioactive compounds.This work offers new insights into marine carotenoids and their potential application in the food,pharmaceutical,and cosmetic industries.
基金supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(2023R1A2C1005569).
文摘Phycoerythrin(PE)extract from red algae Laver(Pyropia dentata)was used in the fabrication of a smart pack-aging film.The PE showed pH sensitivity,implying unique color shifts at different pH.The film colors altered from red through purple-brown to colorless with increasing pH.The smart packaging films were prepared by casting method composed of gelatin(GE),sodium alginate(SA),and cellulose nanofibrils(CNF).The films were coded as GE/SA(control),GE/SA/PE,and GE/SA/CNF/PE.The thickness of the films ranged from 0.24±0.02 mm to 0.33±0.01 mm.The mechanical properties tensile strength(TS)(12.24±0.30 MPa to 17.65±0.33 MPa)and elongation at break(EAB)(79.34%±1.02%-93.36%±0.69%)significantly increased after addition of CNF.The synthesized films showed water contact angle ranged from 84.55±2.12 to 69.41±1.21,suggesting that films were hydrophobic.The Fourier transform infrared spectroscopy(FTIR)and X-ray diffraction(XRD)analysis demonstrated strong interaction among PE,CNF,and biopolymers.The film with GE/SA/CNF/PE exhibited higher thermal stability compared with control film.Then,the films were applied for checking real time application for the freshness of salmon fish.The significant color change of the film occurred and the number of bacterial colony and TVB-N were increased from 3.81 Log CFU/g to 6.94 Log CFU/g and from 4.78 mg/100 g to 32.27 mg/100 g after incubation for 48 h.Therefore,the film with PE and CNF was intended as an excellent candidate for smart packaging film.
