Oil bodies(OBs)are the lipid-storage organelle in oilseed,and their interface properties are crucial for oilseed processing.To elucidate the effect of interfacial proteins on the functional properties of high-oleic an...Oil bodies(OBs)are the lipid-storage organelle in oilseed,and their interface properties are crucial for oilseed processing.To elucidate the effect of interfacial proteins on the functional properties of high-oleic and normal peanut OBs,OBs were extracted using ultrasound-assisted aqueous enzymatic extraction(AEE),and the effects of ultrasonic power(100–500 W)and extraction time(0–30 min)on the interface properties were investigated.These results indicate that the interfacial protein content and interface properties of OBs can be significantly affected by ultrasonic treatment.The interfacial protein content of high-oleic peanut OBs increased from 88.25%to 91.95%after ultrasonic treatment,which was 1.4 times that of normal peanuts OBs.The emulsifying activity index(EAI)and emulsion stability index(ESI)values of both peanut OBs increased with the increase in ultrasonic power and extraction time.These results suggest that the emulsification ability of OBs may be closely related to the interfacial protein content and therefore can be regulated by altering the interfacial protein content using ultrasonic treatment.However,the particle size of OBs tends to increase under low ultrasonic power(0–200 W)owing to the increase in the interfacial protein content and aggregation effects,whereas it decreases under high ultrasonic power(300 W–500 W)due to cavitation effects.This pattern of change in particle size was also confirmed by confocal laser scanning microscopy,which indicated that high ultrasonic power suppressed the contribution of the interfacial protein content to the particle size,but still improved the emulsification ability of the OBs by reducing the particle size and increasing the interfacial tension.Therefore,regulating the interfacial protein content of peanut OBs by adjusting ultrasonic power is a promising way to improve their functional properties.展开更多
INTRODUCTION.Crustal velocity model is crucial for describing the subsurface composition and structure,and has significant implications in offshore oil and gas exploration and marine geophysical engineering(Xie et al....INTRODUCTION.Crustal velocity model is crucial for describing the subsurface composition and structure,and has significant implications in offshore oil and gas exploration and marine geophysical engineering(Xie et al.,2024).Currently,travel time tomography is the most commonly used method for velocity modeling based on ocean bottom seismometer(OBS)data(Zhang et al.,2023;Sambolian et al.,2021).This method usually assumes that the sub-seafloor structure is layered,and therefore faces challenges in high-precision modeling with strong lateral discontinuities.展开更多
基金supported Major Science and Technology Innovation Project of Shandong Province(2023CXGC010707)Natural Science Foundation of Shandong Province(Grant No.ZR2022MC172 and ZR2024MC114)+1 种基金Shandong Province Rural Revitalization Science and Technology Innovation Enhancement Action Plan(Grant No.2023TZXD043 and 2023TZXD069)Scientific Research Foundation for High-Level Talents of Qingdao Agricultural University(663/1120085 and 663/1120084).
文摘Oil bodies(OBs)are the lipid-storage organelle in oilseed,and their interface properties are crucial for oilseed processing.To elucidate the effect of interfacial proteins on the functional properties of high-oleic and normal peanut OBs,OBs were extracted using ultrasound-assisted aqueous enzymatic extraction(AEE),and the effects of ultrasonic power(100–500 W)and extraction time(0–30 min)on the interface properties were investigated.These results indicate that the interfacial protein content and interface properties of OBs can be significantly affected by ultrasonic treatment.The interfacial protein content of high-oleic peanut OBs increased from 88.25%to 91.95%after ultrasonic treatment,which was 1.4 times that of normal peanuts OBs.The emulsifying activity index(EAI)and emulsion stability index(ESI)values of both peanut OBs increased with the increase in ultrasonic power and extraction time.These results suggest that the emulsification ability of OBs may be closely related to the interfacial protein content and therefore can be regulated by altering the interfacial protein content using ultrasonic treatment.However,the particle size of OBs tends to increase under low ultrasonic power(0–200 W)owing to the increase in the interfacial protein content and aggregation effects,whereas it decreases under high ultrasonic power(300 W–500 W)due to cavitation effects.This pattern of change in particle size was also confirmed by confocal laser scanning microscopy,which indicated that high ultrasonic power suppressed the contribution of the interfacial protein content to the particle size,but still improved the emulsification ability of the OBs by reducing the particle size and increasing the interfacial tension.Therefore,regulating the interfacial protein content of peanut OBs by adjusting ultrasonic power is a promising way to improve their functional properties.
基金financially supported by the National Key R&D Program of China(No.2023YFF0803404)the Zhejiang Provincial Natural Science Foundation(No.LY23D040001)+4 种基金the Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society(No.CJ2021GB01)the Open Re-search Fund of Changjiang River Scientific Research Institute(No.CKWV20221011/KY)the ZhouShan Science and Technology Project(No.2023C81010)the National Natural Science Foundation of China(No.41904100)supported by Chinese Natural Science Foundation Open Research Cruise(Cruise No.NORC2019–08)。
文摘INTRODUCTION.Crustal velocity model is crucial for describing the subsurface composition and structure,and has significant implications in offshore oil and gas exploration and marine geophysical engineering(Xie et al.,2024).Currently,travel time tomography is the most commonly used method for velocity modeling based on ocean bottom seismometer(OBS)data(Zhang et al.,2023;Sambolian et al.,2021).This method usually assumes that the sub-seafloor structure is layered,and therefore faces challenges in high-precision modeling with strong lateral discontinuities.
