무첨가 영양정보 제시방법이 다른 성분의 함량평가에 미치는 영향

윤세정 ( Yun¸ Sejeong ),강성모 ( Kang¸ Sungmo ) 한국소비자학회 2020 소비자학연구 Vol.31 No.6

식품의 영양정보 표시는 기업의 입장에서 경쟁제품과 차별화할 수 있는 중요한 마케팅 커뮤니케이션 도구이며 소비자들의 구매 의사결정에 영향을 미치는 중요한 수단이다. 본 연구는 식품의 무첨가 영양정보 제시방법에 따라 소비자의 다른 영양성분에 대한 함량 평가 및 제품에 대한 구매의도가 달라질 수 있음을 보여준다. 구체적으로, 제품의 영양정보가 제시될 때 평가의 대상이 되는 속성에 대한 함량 지각은 함량이 전혀 없는(무첨가) 다른 속성에 대한 정보가 숫자(0%)로 제시될 경우 문자(무, 無)로 제시될 경우보다 높을 것이라고 기대했다. 특히 무첨가 영양정보가 숫자로 제시될 경우, 0이라는 정보가 다른 속성의 함량 평가에 사용되는 현저한 준거점으로 작용하여 함량 평가의 차이가 나타날 것이라고 예상했다. 가설을 검증하기 위해, 실험 1은 동일한 영양정보를 제공하는 상황에서 함께 제시된 무첨가 속성의 정보를 숫자 또는 문자로 제시하고 평가의 대상이 되는 속성의 함량 지각을 측정하였다. 연구 결과, 무첨가 영양정보가 숫자로 제시될 경우 문자로 제시될 경우보다 평가의 대상이 되는 속성의 함량을 높게 지각하는 것을 확인할 수 있었다. 실험 2는 무첨가 영양정보 제시방법이 제품에 대한 구매의도에 미치는 영향을 검증하고, 이러한 효과가 평가의 대상이 되는 속성에 대한 함량지각에 의해서 매개되는지를 분석하였다. 연구 결과, 무첨가 속성의 영양정보가 숫자로 제시될 경우 문자로 제시될 경우보다 평가의 대상이 되는 속성에 대한 함량지각이 높았으며 제품에 대한 구매의도 또한 높은 것으로 나타났다. 매개효과를 분석한 결과 평가의 대상이 되는 속성에 대한 함량지각의 완전 매개효과가 존재했다. 본 연구는 무첨가 영양정보를 더욱 효과적으로 나타낼 수 있는 프레이밍 효과를 제시하였으며, 이를 기업의 마케팅 커뮤니케이션 전략에 적용 가능하다는 점에서 이론적, 실무적 시사점을 가진다. The presentation of nutrition information is an important marketing communication strategy that has been used by several companies to differentiate their products from competitors. Moreover, it has been used as a means of influencing consumer decision making. This research shows that the way additive-free nutrition information is presented influences consumers’ perception on the magnitude of nutritional contents and purchase intention toward the product. Specifically, the perceived magnitude of the target ingredient is expected to be greater when the additive-free nutrition information presented together is presented in a numeric form (e.g., 0%) than in a verbal form (e.g., no). The difference in magnitude evaluation occurs because the number zero becomes a salient reference point that consumers use to evaluate the magnitude of a target ingredient content when co-presented nutrition information is in a numeric form. Study 1 compares the perceived magnitude of the target ingredient content between numeric and verbal conditions when the total amount of co-presented nutrition information is set to be equal. The results of Study 1 show that the magnitude of a target ingredient content is perceived to be greater when the additive-free nutrition information is presented in a numeric (vs. verbal) form. Study 2 examines the influence of additive-free nutrition information framing on purchase intention toward the product and tests the mediation effect of the perceived magnitude of the target ingredient content on the relationship between the nutrition information framing and purchase intention. The results of Study 2 show that the numeric presentation of additive-free nutrition information increases the perceived magnitude of the target ingredient content and the purchase intention of the product. The results of mediation analysis suggest that the perceived magnitude of the target ingredient content completely mediates the relationship between the nutrition information framing and purchase intention. This research contributes to the literature by showing that the additive-free nutrition information framing can change consumers’ perception and purchase intention. This research also provides practical implications for marketers as the framing can help firms effectively convey the nutrition information on their product packages.

Evaluation on Antimicrobial Activity of Psoraleae semen Extract Controlling the Growth of Gram- Positive Bacteria

Sejeong Kim,Soomin Lee,Heeyoung Lee,Jimyeong Ha,Jeeyeon Lee,Yukyung Choi,Hyemin Oh,Joonbae Hong,Yohan Yoon,Kyoung-Hee,Choi 한국축산식품학회 2017 한국축산식품학회지 Vol.37 No.4

This study investigated bacterial growth-inhibitory effect of 69 therapeutic herbal plants extracts on 9 bacterial strains using a disc diffusion assay. Especially, the antimicrobial activity of Psoraleae semen, which showed different activity on pathogenic Gram-positive and Gram-negative bacteria, was evaluated by MIC (minimal inhibition concentration) and biofilm formation assay. The effect of Psoraleae semen extract on bacterial cell membranes was examined by measurement of protein leakage (optical density at 280 nm) and scanning electron microscope (SEM). No clear zone was formed on discs containing Gram-negative bacteria, but Gram-positive bacteria exhibited clear zones. The MICs of Psoraleae semen extract were 8 μg/mL for Streptococcus mutans, and 16 μg/mL for Enterococci and Staphylococcus aureus. In addition, biofilm formation was inhibited at concentration 8-16 μg/mL. Protein leakage values and SEM images revealed that cell membranes of Gram-positive bacteria were impaired following exposure to the extract. Further, the extract inhibited the growth of Listeria monocytogenes in sausages. These results indicate that Psoraleae semen extract could be utilized as a natural antimicrobial agent against Gram-positive bacteria.

Polymer Hydrogels Formulated with Various Cross-Linkers for Food-Surface Application to Control Listeria monocytogenes

Sejeong Kim,Hyemin Oh,Heeyoung Lee,Soomin Lee,Jimyeong Ha,Jeeyeon Lee,Yukyung Choi,Yohan Yoon 한국식품위생안전성학회 2017 한국식품위생안전성학회지 Vol.32 No.5

This study investigated the physical properties of polymers and antimicrobial activities of organic acids on Listeria monocytogenes to develop hydrogels. κ-carrageenan (1, 2, and 3%), carboxymethylcellulose (CMC; 1, 3, and 5%), and agar (1.5 and 3%) were mixed with cross-linkers (Na+, K+, Ca2+, and Al3+) or each other by stirring or heating to form cross-linkage, and their physical properties (hardness, elasticity, and swelling) were measured. The hydrogels formulated with organic acid (1, 3, and 5%) were analyzed by spot assay against L. monocytogenes. κ-carrageenan formed hydrogels with high hardness without other cross-linkers, but they had low elasticity. The elasticity was improved by mixing with other cross-linkers such as K+ or other polymer, especially in 3% κ-carrageenan. CMC hydrogel was formed by adding cross-linkers Al3+, Na+, or Ca2+, especially in 5% CMC. Thus, stickiness and swelling for selected hydrogel formulations (two of κ-carrageenan hydrogels and three of CMC hydrogels) were measured. Among the selected hydrogels, most of them showed appropriate hardness, but only 3% κ-carrageenan-contained hydrogels maintained their shapes from swelling. Hence, 3% κ-carrageenan+0.2% KCl and 3% κ-carrageenan+1% alginate+0.2% KCl+0.2% CaCl2 were selected to be formulated with lactic acid, and showed antilisterial activity. These results indicate that 3% κ-carrageenan hydrogels formulated with lactic acid can be used to control L. monocytogenes on food surface.

Polymer Hydrogels Formulated with Various Cross-Linkers for Food-Surface Application to Control Listeria monocytogenes

Sejeong Kim,Hyemin Oh,Heeyoung Lee,Soomin Lee,Jimyeong Ha,Jeeyeon Lee,Yukyung Choi,Yohan Yoon 한국식품위생안전성학회 2017 한국식품위생안전성학회지 Vol.32 No.6

Development of an Image Processing Hardware for Detecting Defects on the surface of the High Speed Moving Plate

Sejeong Jang,Kwangsuck Boo,Jeonghoon Song,Seungyoung Lee 제어로봇시스템학회 2002 제어로봇시스템학회 국제학술대회 논문집 Vol.2002 No.10

Invasive pulmonary aspergillosis in a patient with metastatic non-small cell lung cancer after treatment with gefitinib

Sejeong Park,So Young Park, M.D.,Hana Choi,Ji Young Park,Hyo Seok Lim,Myung Jae Park,Si-Young Kim 대한내과학회 2018 The Korean Journal of Internal Medicine Vol.33 No.1

Catalytic Pyrolysis of Waste Polyethylene Terephthalate over Waste Concrete

( Sejeong Lim ),( Young-min Kim ) 한국공업화학회 2019 공업화학 Vol.30 No.6

The feasibility of waste concrete as a catalyst for the effective pyrolysis of polyethylene terephthalate (PET) was examined using thermogravimetric (TG) and pyrolyzer-gas chromatography/mass spectrometry (Py-GC/MS) analyses. TG analysis results indicated that the maximum decomposition temperature of PET is not altered by the use of waste concrete, showing similar values (407 ℃ and 408 ℃ at 5 ℃/min). Meanwhile, the volatile product distribution data obtained from the Py-GC/MS analysis revealed that the use of waste concrete promoted the deoxygenation reaction via converting the oxygen containing products such as benzoic acids, benzoates, and terephthalates to valuable deoxygenated aromatic hydrocarbons including benzene, toluene, ethylbenzene, and styrene. This suggests that the waste concrete can be used as a potential catalyst for the production of valuable aromatic hydrocarbons from PET pyrolysis.

The Antidiabetic Effect of Onion and Garlic in Experimental Diabetic Rats: Meta-Analysis

Sejeong Kook,김건희,최기헌 한국식품영양과학회 2009 Journal of medicinal food Vol.12 No.3

This study was carried out to evaluate the effect of onion and garlic in experimentally induced diabetic rats by meta-analysis of related studies. Ten systematic literature searches were conducted on the National Center for Biotechnology Information database, the DBpia database, and the Koreanstudies Information Service System database. Most studies had three groups—the normal group, the treated diabetic group, and the untreated diabetic group—the means of which were compared for various effect factors between two of the groups. The effect factors were blood glucose concentration, body weight, and the concentrations of plasma total cholesterol, plasma triglycerides, plasma high-density lipoprotein-cholesterol, and liver glycogen. The treated diabetic group included diabetic rats supplemented with either onion or garlic extract or with single components, including S-allylcysteine sulfoxide, S-methylcysteine sulfoxide, and diallyl trisulfide. The effects of each factor were investigated by the standardized mean difference between the treated diabetic group and the diabetic group. Because homogeneity among studies for some effect factors is not plausible, the random effect estimates were calculated. In the meta-analysis, the antidiabetic effects of onion extract and single components were significant for glucose concentration and body weight (P<.05), but the effects of garlic extract were not significant. The results of the meta-analysis suggested that the single component intake and onion extract intake may be effective for lowering plasma glucose concentrations and body weight.

Inhibitory Effect of Sea Cucumber Extracts and Enzymatic Hydrolysates on Lipid Accumulation in Free Fatty Acid-Induced Steatotic Hepatocytes

Sejeong KIM,Yun-Ho JO,Bi-Oh PARK,Dae-Seok YOO,Doo-Ho KIM,Min-Jung KIM,Youn-Gil KWAK,Jin-Seong KIM 한국생물공학회 2022 한국생물공학회 학술대회 Vol.2022 No.4

The Anti-hepatotoxic Effect of Ginseng in Rats: Meta-analysis

Sejeong Kook,Hye-Kyoung Han,Gun-Hee Kim,Kiheon Choi 고려인삼학회 2008 Journal of Ginseng Research Vol.32 No.2

The aim of this meta-analysis was to systematically investigate the anti-hepatotoxic effect of ginseng in rats induced toxicity which damage to liver. Primary researches were gained on the ScienceDirect database, the DBpia, and the KISS, and the data about the effect factors in plasma and in enzyme were listed as many as possible. The effect factors were alanine transaminase (ALT), aspartate transaminase (AST), liver aminopyrine N-demethylase (AD), liver aniline hydroxylase (AH), liver 3,4-Methylenedioxyamphetamine (liver MDA), cytochrome P450 (P450), serum alkaline phosphatase (ALP), serum lactate dehydrogenase (LDH), cytochrome b5 (Cyto b5), glutathione reductase (GR), Liver glutathione S-transferase(GST), liver glutamyltransferase (GT), Liver(γ-GCS), serum liver 3,4-Methylenedioxyamphetamine (serum MDA), serum sorbitol dehydrogenase (SDH), serum total protein (TP), serum γ-glutamyltransferase (γ-GT). To investigate the effect of ginseng, the mean difference (MD) between the group of rats induced by toxicity (RH) and the group of rats induced by toxicity with ginseng (RHG) were combined, and the significance of MDs were tested. The combined MDs were checked the biases caused by heterogeneity among studies and the publication biases, and adjusted by using random effect model and trim and fill method, respectively. The effect about ALT, AST, ALP, LDH, SDH, TP and γ-GT in plasma factors were significant, and about AD, liver MDA, P450, Cyto b5, GR, GST, GT and γ-GCS in enzyme factors were significant. The treatment with ginseng supplementation was significantly effected on plasma and enzyme factors of damaged-rats.