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Screening and Application of the Natural Pigment for Meat Analogues
Suyoon Lee,Jungwoo Hahn,Seunghwan Ham,You Young Lee,Euiji Lee,Young Jin Choi 한국산업식품공학회 2020 학술대회 및 심포지엄 Vol.2020 No.11
Recently, a lots of studies have been conducted to imitate real meat with the factors including texture, aroma, taste, and color of meat analogues. Since the color component of meat is diverse and complex, as well as large of degree of change according to cooking, the color imitating has been still challenging. In this study, we selected up a representative meat analogue (tteok-galbi), tracked the color change at three making points as steps of batter, steaming, and cooking. In order to realize the color at these points, three plant-based natural pigments including prickly pear cactus, sweet pumpkin, and mugwort were selected, and the color with optimized ratio was applied to the tteok-galbi. As a result, it was found that 1:3:1 in the batter, 2:1:2 in steaming, and 2:1:2 in cooking were optimal ratios. The results in this study were significant in that it could apply the colors to meat analogues according to the combination of natural pigments derived from plants.
Descriptive sensory analysis of meat analogues applied with sweet potato stem
Suyoon Lee,You Young Lee,Hyun Woo Choi,Seung Hwan Ham,Mingyu Lee,Jungwoo Hahn,Young Jin Choi 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Textured vegetable protein (TVP) is widely used as a raw material for plant-based products. However, plant-based meat analogue using TVP usually has problems such as high strength and toughness compared to the real meat. The aim of the study was to analyze the sensory properties of meat analogues added with the sweet potato stem (SPS). We prepared meat analogues with different contents (0-20%) of physical fibrillated SPS. The 10 panels selected through the discriminative tests were trained for one month and proceeded through the descriptive sensory analysis. All results were treated through principal component analysis (PCA). The value of firmness and density tended to decrease as the content of SPS increased. SPS interfered with the binding between TVPs, thereby weakening the overall structure of the meat analogue. In conclusion, SPS might be helpful for replacing TVP to improve the textural properties of the meat analogues. Additionally, SPS showed the effect of reducing the beany flavor of the meat analogue. These results would be expected to be applicable to other meat analogues, such as minced meat and sausage.
이산화바나듐 나노플라워 구조 최적화를 통한 리튬-황 전지의 폴리설파이드 셔틀 효과 완화
Su Hwan Jeong,Hyeon-jun Choi,Sang Jun Lee,Dong Park Lee,Suyoon Eum,San Moon,Jong Hyuk Yun,김주형 대한금속·재료학회 2023 대한금속·재료학회지 Vol.61 No.11
With the rapid development of portable devices and Energy Storage Systems (ESS), secondary batteries with high energy density and high capacity are in great demand. Among various candidates, Lithium-sulfur (Li-S) batteries have been considered for next-generation energy devices given their high theoretical capacity (1675 mAh g-1) and energy density (2500 Wh kg-1). However, the commercialization of LiS batteries faces challenges due to sulfur’s low electrical conductivity and the shuttle effect, caused by the dissolution of lithium polysulfide intermediates in the electrolyte during the charge-discharge process. Herein, to resolve these problems, we report the fabrication of a vanadium dioxide (VO2) composite via a simple hydrothermal method and optimize the structure of VO2 for constructing an effective Multi-Walled Carbon Nano Tube (MWCNT) and 3D flower-shaped VO2 (MWCNT@VO2) binary sulfur host by a simple melt diffusion method. In particular, the polar VO2 composite not only physically absorbs the soluble lithium polysulfides but also has strong chemical bonds with a higher affinity for lithium polysulfides, which act as a catalyst, enhancing electrochemical reversibility. Additionally, MWCNT improves sulfur’s poor electrical conductivity and buffers volume expansion during cycling. The designed S-MWCNT@VO2 electrode also exhibits better capacity retention and cycling performance than a bare S-MWCNT electrode as a lithium polysulfide reservoir.