Cherry tomato (Solanum lycopersicum L,. var. cerasiforme Mill.) is small fruits with a bright red color resembling a cherry and having an excellent taste, sweet and juicy ambience. So far, no cherry tomato variety was registered in Ethiopia. Consequently, six genotypes were imported from National Institute of Horticulture and Herbal Sciences (NIHHS), Rural Development Administration (RDA) Republic of Korea, and field experiment was conducted in RCBD with three replications at six Ethiopian testing sites, with irrigation, during off-seasons of 2021 and 2022 to identify high yielding, well adapted and good quality varieties. The overall analysis of variance across locations and years showed non-significant difference among the genotypes for marketable and total yields. But separate analysis for each site has revealed significant differences among genotypes at Melkassa, Koka, Adami- Tulu and Fogera, unlike that of Kulumsa and Woramit. There were significant differences (P < 0.05) among these genotypes for fruit numbers per plant, average fruit weight, fruits per cluster, plant height, skin thickness, juice volume and total soluble solid. Wonhong No.3 gave higher marketable (24.49 t/ha) and total (26.19 t/ha) yields, and generally Wonhong Nos.3 and 5 had higher yields and good qualities across these tested locations and years. Hence, Wonhong No.3 (designated as Jorgie-1) was registered for its higher yield, non-cracking, good TSS and color, while Wonhong No.5 (renamed as Jorgie-2) was preferred for its smaller fruit size, reasonable yield and quality (TSS, color, non-cracking). Hence, both varieties were officially registered in 2023 season for commercial production in different agro-ecologies of Ethiopia, and they are believed to add more economic and nutritional values for the tomato producers and the consumers. They can also support the intensification of tomato cultivation in peri-urban and urban agriculture, where demands and thus government focus are increasingly growing.

본 연구는 국내 유통 후 분화 칼랑코에 Kalanchoe blossfeldiana ‘Queen Bell’의 배지 수분함량에 따른 분화품질 및 수명 차이를 분석하고자 수행되었다. 출하 후 배지 내 수분함량(Substrate moisture content, %)은 매주 관수를 통해 고습(≥90%), 중습 (40~55%), 저습(10~30%) 3수준으로 처리하였다. 분화수명은 저습처리가 고습과 중습처리보다 36.8~42.3% 단축시켰다. 분 화수명 종료증상 중 잎의 황화증상은 저습처리에서 100% 나타 났다. 분화의 초장은 출하 후 분화수명 종료시점인 4주차에는 차이가 없었으나, 식물폭은 저습 처리가 고습과 중습 처리보다 13.4~15.4% 낮았다. 전체 꽃눈수와 개화된 꽃수는 1주차에는 처리간 차이가 없었으나, 4주차에 저습 처리에서 고습과 중습 처리구보다 낮았다. 개화율(Flowering rate)은 모든 처리구에 서 시간 경과에 따라 증가하였으나, 저습처리의 출하 대비 개화 율(Flwering compared to shipment)은 3주 이후부터 가장 낮았다. 5주차의 지상부의 생체중 및 건물중은 처리간 차이가 없었다. 반면 지하부의 생체중 및 건물중은 저습 처리가 고습과 중습 처리보다 모두 낮았다. 출하 후 4주차의 잎의 엽록소함량, Fv/Fm, 기공크기변화율은 처리간 차이가 없었다. 이때, 꽃잎과 잎의 온도는 고습처리에서 중습처리보다 낮았고, 저습처리에서 중습처리보다 높았다. 결론적으로 분화 칼랑코에의 출하 후 배 지 내 저습(10~30%)처리는 고습(≥90%)과 중습(40~55%)처리에 비해 분화수명을 단축시켰고, 잎의 황화현상을 증가시켰다. 특히 저습처리는 분화수명 종료 시점에 식물 폭, 전체 꽃눈수, 개화된 꽃수, 출하 대비 개화율, 지하부의 생제중 및 건물중을 감소시켰고, 꽃잎과 잎의 온도를 증가시켰다.

Recently, with the development of industrial technology and the increase of young consumers, engine monitoring devices for small ships are rapidly changing from analog devices to LCD-based digital devices. In addition, consumers’ product selection criteria are gradually increasing in favor of luxurious and emotional products rather than price attractiveness. Therefore, in order to develop differentiated products in marketing, it is necessary to find and improve emotionally attractive quality elements. The purpose of this study is to collect 11 customer requirements related to the emotional quality of DGP (Digital Gauge Panel) for small ships through customer interviews and to find attractive quality elements among the emotional qualities of DGP for small ships. 17 design elements were derived by applying QFD to the collected customer requirements, and they were classified into one-dimensional quality, must be quality, and attractive quality through Kano model analysis, and 6 attractive quality elements were confirmed using Timko customer satisfaction index.

본 연구의 목적은 서울형 우리동네키움센터 종사자의 직무만족이 이용 자의 서비스 효과성에 미치는 영향력을 알아보고, 서비스 품질의 매개효 과를 검증하는데 있다. 이를 위해 서울형 우리동네키움센터 종사자와 이 용자 206명을 대상으로 설문조사를 실시하였다. 연구자료는 SPSS 26.0 을 이용하여 기술분석, 신뢰도분석, 회귀분석, Sobel Test를 실시하였다. 연구결과는 다음과 같다. 첫째, 서울형 우리동네키움센터 종사자의 직무 만족은 서비스 품질에 영향을 주는 것으로 나타났다. 둘째, 서울형 우리 동네키움센터 종사자의 서비스 품질이 서비스 효과성에 영향을 미치는 것으로 나타났으며, 셋째, 서울형 우리동네키움센터 종사자의 직무만족과 이용자의 서비스 효과성 관계에서 서비스 품질의 매개효과가 있는 것으 로 나타났다. 본 연구결과에 근거하여 서울형 우리동네키움센터의 서비 스 효과성을 높이기 위해, 종사자의 직무환경을 개선하고, 이용자의 특성 을 고려한 서비스 개선에 대한 실천적 제언을 제시하였다.

본 연구는 합성 아질산염 대체 천연보존료로 개발하고자 천연물 유래 복합추출물(NP-NAP, NP-NAMR)의 성분 특성 과 소시지에의 적용 시 품질 특성을 규명하였다. NP-NAP 와 NP-NAMR 0.5-1.0% (w/v)는 90.1-100%의 ABTS 라디 칼 저해능과 10 mg/mL에서 각각 811 μM 및 770 μM trolox 상당의 FRAP 활성을 보였다. NP-NAP와 NP-NAMR은 S. aureus와 L. monocytogenes, E. coli 및 S. Typhimurium에 대 해 0.1% (w/v)에서 99.99-100%의 감소율을 보였고 C. perfringens에 대해 1%와 2% (w/v)에서 각각 89.0-91.4%와 84.7-100% 이상의 감소율을 보였다. 천연 복합추출물 첨가 소시지 시제품의 냉장 중 품질 특성에서 4주 차 pH (6.43- 6.57)와 NP-NAMR 첨가 시 높은 a 값(23.54% 및 28.81)을 확인하였다. Springiness와 cohesiveness는 NP-NAP 1%가 높 았으나 다른 모든 시험구는 양성 대조구와 유의적 차이가 없었다(P<0.05). 냉장 중 평균 MDA (0.87-1.183 μM)는 양 성 대조구(0.93-0.96 μM)와 유사하였으며(P<0.05) 총 증가 균수(log CFU)는 1% 첨가(1.10-1.32) 시 nitrite pickling salt (NPS) 0.08% (1.31)과 유사하였고 2% 첨가 시(0.17-0.49)는 commercial product from Spain (CPS) 1% (0.53)보다 적었 다. 종합적 기호도는 NP-NAMR 2% 제외한 모든 시험구는 통계적 유의차가 없었다. 이상의 결과, 과채 추출물 유래 NP-NAP와 NP-NAMR은 항산화, 항균 활성과 안정적인 적 색도와 함께 식약처 고시 소시지류의 기준 및 규격을 만족 하여 합성 아질산염과 시판 수입품을 대체하는, 유효한 소 재가 될 수 있을 것으로 사료된다.

농산물 재배, 수확 후 세척 등에 사용되는 농업용수는 미생물에 오염될 경우 병원균을 농산물로 전파하여 식중 독을 유발할 수 있기 때문에 관리가 필요하다. 이 연구는 2021년부터 2023년까지 하천수, 저수지, 지하수 등 다양 한 수원의 농업용수에서 대장균군과 대장균의 오염 수준 을 조사하고 자외선(ultraviolet, UV) 소독이 농업용수 내 미생물을 저감시키는 데 얼마나 효과적인지 평가하였다. 농업용수의 미생물 수질조사 결과 대장균 오염도는 수원 에 따라 차이가 있는 것으로 나타났다. 하천수의 대장균 농도는 평균 0.95±1.23 log CFU/100 mL였으며, 저수지는 평균 0.76±1.07 log CFU/100 mL, 지하수는 평균 0.1±0.47 log CFU/100 mL, 기타수원은 평균 0.6±0.87 log CFU/100 mL로 조사되었다. 수원별로 보면 하천수, 저수지, 지하수 순으로 높은 미생물 오염을 보였다. 다양한 용수 조건에 서 자외선 소독을 테스트한 결과, 99.9% 미생물 비활성화 에 필요한 UV 선량은 증류수에서 1.2-1.6 mW/cm2·sec, 농 업용수 원수에서 2.0-2.7 mW/cm2·sec 범위 였다. 고형물 응집제를 통해 전처리된 농업용수는 처리되지 않은 농업 용수 원수에 비해 자외선 투과율이 높았으며, 미생물을 99.9% 감소시키는 데 필요한 자외선 선량이 더 낮아지는 것으로 나타났다. 용수 자외선 투과도가 감소함에 따라 소독 효율이 감소함에도 불구하고 본 실험에서 조사된 선량 은 수질에 상관없이 수초 내 99.9%의 미생물 감소를 달 성하는 것으로 나타나, UV 소독기술은 농업용수의 미생 물 위험을 줄이는 데 효과적인 방법으로 판단된다.

This study was conducted to investigate the quality characteristics of rose pasta sauce added with plant-based meat substitutes and plant-based ingredients. The rose pasta sauces were prepared by varying the proportions of tomato sauce and soy milk-based mayonnaise. As the proportion of soy milk mayonnaise increased and the proportion of tomato sauce decreased, the pH increased and the total acidity decreased. The total polyphenol content of rose pasta sauce ranged from 122.59 to 168.09 mg/100 mL, with higher values found in pasta sauces containing soy milk mayonnaise, particularly in the B treatment (70% tomato sauce, 30% soy milk mayonnaise) and tannin content was also highest in the B treatment (117.61 mg%). ABTS radical scavenging activity ranged from 34.90% to 40.62%, with significantly higher values observed in A, B, and C. DPPH radical scavenging activity ranged from 63.42% to 84.46%, with the highest activity found in the A treatment, followed by the B treatment. These results suggest that the development of rose pasta sauces with plant-based ingredients and meat substitutes can offer diverse applications and potential in the food industry.

The Indoor Air Quality Control Act aims to regulate indoor air quality (IAQ) to safeguard public health and promote a comfortable living environment. This law encompasses multi-use facilities, newly constructed residential complexes, and public transportation vehicles. The law also involves mandating air quality standards, conducting periodic measurements, and transparent public reporting of results. Over time, the Indoor Air Quality Control Act has expanded to enforce stricter controls on building materials and enhance radon mitigation measures. In doing so, it embodies the principles of the Environmental Policy Basic Act and is supported by other laws, policies, and systems related to air quality management. In line with these efforts, local governments have been implementing IAQ initiatives tailored to regional needs, including consulting services and financial support. However, challenges persist in harmonizing management across diverse facilities due to overlapping responsibilities among laws and government bodies. Future recommendations emphasize integrated strategies and enhanced inter-agency coordination to address these gaps effectively, ensuring healthier indoor environments for all stakeholders.

This study evaluated the suitability of using Wickerhamomyces anomalus A1-5 isolated from solid grain fermentation broth for winemaking by comparing the quality and functionality of Campbell Early wine produced with single and mixed inoculations. The pH ranged from 3.43 to 3.68, with the highest value in treatment B. Soluble solids ranged from 5.0 to 7.7 °Brix. Total acidity was measured at 0.42% to 0.47%. Color analysis indicated a significant decrease in lightness with an increase in redness across all treatment groups compared to the control. Among aroma compounds, 8 alcohols, 6 esters, 3 acids, and 11 other compounds were identified, with the control having the highest alcohol content and treatment D having the highest ester content. Tannin and total polyphenol contents ranged from 46.46 mg% to 95.92 mg% and from 87.66 mg% to 147.21 mg%, respectively. Antioxidant activities measured by DPPH and ABTS assays ranged from 33.84% to 69.02% and from 42.43% to 89.18%, respectively, with treatment B exhibiting the highest activities. These results suggest that W. anomalus A1-5 may positively influence the quality and functionality of Campbell Early wine, presenting potential as a novel yeast strain for winemaking.

This study assessed dried vegetables derived from sweet potato petioles to promote the use of typically discarded aerial parts. The length (18.25 to 35.00 cm) and thickness (4.59 to 6.66 mm) of the petioles varied by variety, with ‘Hophungmi’ and ‘Tongchaeru’ showing promise for dried vegetable processing due to their longer and thicker petioles. In terms of color, ‘Hophungmi’ and ‘Shinmi’ exhibited high lightness, ‘Tongchaeru’ and ‘Hayangmi’ displayed strong redness, and ‘Pungwonmi’ had high yellowness. Rehydration rates and hardness increased over the harvest period, with ‘Pungwonmi’ and ‘Tongchaeru’ demonstrating excellent rehydration capacity. Additionally, ‘Hayangmi,’ ‘Shinmi,’ ‘Tongchaeru,’ and ‘Hophungmi’ maintained lower hardness levels, appealing to consumers who prefer a softer texture. Notably, the substantial polyphenol content (10.70 to 16.20 mg GAE/g) and flavonoid content (4.79 to 8.11 mg CE/g), along with antioxidant activity (DPPH: 1.11 to 2.14 mg, ABTS: 5.51 to 7.78 mg TE/g), indicate their potential as antioxidant-rich functional foods. This research supports the development of dried vegetable products tailored to consumer preferences.

Cold-pressed rapeseed oil (CPRO) is a rich source of bioactive components, but it is more susceptible to deterioration due to absence of chemical refining. Proper storage conditions are essential to maintain oil quality. This study evaluated the quality properties of seed-stored oil (SSO) and oil-stored oil (OSO) under various storage conditions. Both the seeds and the CPRO obtained from the ‘Jungmo7001’ and ‘Yuryeo’ varieties were stored for 24 months at 4℃, 25℃, and ambient temperature (AT). After 24 months, the acid value (AV) at 4℃ was lower than at 25℃ and AT. Additionally, the AV increased by 3.0-fold in SSO and 1.9-fold in OSO at AT compared to initial storage levels. OSO was found to be relatively more stable against oxidation than SSO. The canolol content in SSO increased with both storage temperature and period, but this was not observed in OSO. However, no changes in fatty acid composition or tocopherol content were noted based on the storage conditions, indicating that these properties remained relatively stable during storage. These results provide foundational data for the stable distribution of CPRO.

This study presents an integrated indoor air quality index (IAQI) algorithm aimed at enhancing the efficiency of indoor air quality management in diverse indoor environments. The proposed IAQI accounts for the combined effects of multiple pollutants, offering a more comprehensive approach than traditional concentrationbased methods. Findings from four exposure scenarios and probabilistic health risk assessments indicate that the IAQI can be tailored to reflect occupant characteristics and space usage, thereby providing improved protection for sensitive populations, such as newborns. The application of occupant-specific criteria led to reductions in pollutant concentrations and associated health risks compared to conventional standards. Furthermore, the IAQI incorporates correction factors and weighted adjustments, facilitating robust risk assessments in complex multi-pollutant contexts. By addressing the limitations of single-pollutant management, this approach supports the development of more effective strategies for indoor air quality control. The proposed algorithm holds significant potential for practical applications in indoor air quality management and policymaking. Future research should focus on validating its effectiveness across a wider range of indoor environments.

This study aimed to evaluate quality characteristics and functionality of liqueurs made from different plum varieties (chu-hui and Blood Plum) with various maceration treatments. Liqueurs were prepared by adjusting plum extraction content and alcohol concentration from 10% to 50%. After 12 weeks of maceration, the pH ranged from 4.08 to 4.77. Both total acidity and soluble solidsincreased with higher alcohol content. Redness(a*), a key factor affecting consumer preference, was higher in blood plum liqueurs (17.15~52.69) than in Chu-hui liqueurs (－0.31~4.69). Antioxidant activity measured by DPPH and ABTS radical scavenging ability peaked at 8 weeks of maceration, showing variations among treatments. When the extraction ratio of plums was below 30%, the color appeared light. Liqueurs treated with 30% Blood Plum for 8 weeks showed the highest commercial potential. This study provides scientific information necessary for establishing a manufacturing process for plum-based liqueurs.

Indoor air quality is a critical factor affecting health and quality of life, especially in spaces frequently used by sensitive populations such as adolescents. This study assessed the impact of garden ball installations and electrochemical fertilizer applications on indoor air quality in two youth centers, Center S and Center W, located in Bucheon, South Korea. PM2.5, PM10, and CO2 concentrations were monitored and analyzed based on the presence of garden balls and the use of electrochemical fertilizers. The results showed that spaces with garden balls (w/ G.B.) had significantly lower PM2.5 and PM10 concentrations compared to offices and spaces without garden balls (w/o G.B.). In Center W, the presence of garden balls alone improved air quality, highlighting the potential of vertical greening as a sustainable solution. In Center S, the application of electrochemical fertilizers during the “after + period” (when both garden balls and electrochemical fertilizers were applied) further enhanced particulate matter reduction, demonstrating the fertilizers’ ability to amplify plants’ air-purifying effects. This study provides empirical evidence that garden balls are an eco-friendly option for indoor air quality management. Combining electrochemical fertilizers with garden balls shows promise for enhancing air quality, offering a practical model for multi-use facilities such as youth centers.

This study aims to propose new grading standards that can be applied to AI-based automatic sorting machines, reflecting current distribution and consumption trends. The current domestic grading standards for onions in South Korea are based on the “Agricultural and Fishery Products Quality Control Act”. They classify onions based on criteria such as uniformity, shape, color, and the presence of foreign matter. Onion grading standards are divided into four categories based on bulb diameter and weight. However, in the actual domestic market, onions are distributed according to a five-grade classification based on bulb diameter. Therefore, this study classified onions into eight grades, reflecting current distribution and consumption trends in the domestic market. These grades are applicable to AI-based automatic sorting machines. Marketable onions were classified into A1 (extra large) to A5 (extra small) based on the diameter of a single bulb. Onions used for non-marketable purposes (processing) were classified as grade B. Additionally, grade C and grade D were designated for processing and disposal, respectively. By establishing quality grading classifications that align with current distribution and consumption market trends as well as the operational characteristics of AI-based automatic sorting machines, we can expect improvements in work efficiency and reductions in distribution costs. Following this study, it will be necessary to establish comprehensive quality grading standards that include both external criteria (such as bulb weight and size) and internal criteria (such as detection of internal decay and disease occurrence).

본 연구는 직장 여성이 느끼는 성인 자녀 부양 부담이 삶의 질에 미치 는 영향과 스트레스의 매개역할를 검증하기 위한 목적으로 여성가족부에 서 실시한 2020 여성가족패널조사 데이터를 중심으로 취업 상태인 여성 1,839명을 대상으로 연구분석하였다. 연구는 SPSS 및 Amos 25.0을 사 용하여 분석했다. 연구결과, 첫째, 직장 여성이 느끼는 성인 자녀 부양 부담이 클수록 삶의 질이 낮아짐을 분석했다. 둘째, 직장 여성이 느끼는 성인 자녀 부양 부담이 클수록 스트레스가 높아짐을 분석했다. 셋째, 스 트레스는 직장 여성이 느끼는 성인 자녀 부양 부담과 삶의 질 간 관계에 서 매개효과를 가지고 있음을 확인했다. 이상의 연구결과를 바탕으로 직 장 여성의 성인 자녀 부양 부담, 스트레스, 삶의 질에 관한 실천적 함의 를 제공했다.

Objectives: The main purpose of this study was to identify problems such as cooking fumes and lack of ventilation in school cafeterias and evaluate the improvement in the reduction of indoor pollutants in the cooking rooms through renovation. Methods: Three schools were selected for renovation and the spatial structures and air conditioning system of the cafeterias and cooking rooms wre investigated after renovation. The air conditioning systems were improved by the renovation work according to the characteristics of each school, and the concentration of indoor pollutants was measured and evaluated through CFD analysis. Results: The concentration of indoor pollutants in the cafeterias and cafe rooms was decreased after renovation. Conclusion: Air conditioning systems in the schools cafeterias and cooking rooms were improved in order to solve the problems of ventilation, and the indoor air quality improvement rate ranged from a minimum of 11% to a maximum of 40%. The renovation of cafeterias and cooking rooms was conducted to optimize the ventilation systems and this contributed to indoor air quality improvement by preventing the inflow of pollutants.

This study evaluated the quality characteristics of Flammulina velutipesduring storage using modified atmosphere films of different thicknesses (20, 40, and 60 μm). The films included high-density polyethylene (HDPE) and low-density polyethylene (LDPE). F. velutipeswere stored at 1°C for six weeks, and quality was assessed based on weight loss, respiration rate, firmness, color parameters, β-glucan content, total phenolic content (TPC), and antioxidant activities (2,2-diphenyl-1- picrylhydrazyl and 2,2'-azino-bis [3-ethylbenzothiazoline-6-sulfonic acid] radical scavenging activities). All HDPE and LDPE films were more effective than the conventional film (polypropylene) at maintaining mushroom quality, particularly in the later stages of storage. In particular, LDPE films with thicknesses of 20 and 40 μm showed superior performance at reducing respiration rates and weight loss, while mushrooms packaged with these films retained higher TPC and antioxidant activities. The β-glucan content also remained more stable in mushrooms stored using HDPE and LDPE films. Although we did not evaluate changes in sensory properties or nutritional components, such as vitamins, our results suggest that the type and thickness of packaging films significantly influence the preservation of the quality of F. velutipesduring storage. Additionally, LDPE films with thicknesses of 20 and 40 μm were found to be the most suitable packaging materials for the distribution and storage of F. velutipes. Furthermore, these findings are expected to provide valuable insights into the selection of optimal packaging materials to extend the shelf life and maintain freshness during the postharvest handlingof F. velutipes.

Flammulina velutipesis highly valued and widely consumed because of its nutritional and functional benefits, and its global demand is steadily increasing. However, rapid quality deterioration and short shelf life create an urgent need for effective preservation and advanced quality assessment of Flammulina velutipes. The aim of this review was to identify methods that reduce postharvest quality loss, extend shelf life, and optimize storage and distribution practices for Flammulina velutipes. Chemical treatments (including antioxidants, 1-methylcyclopropene, and edible coatings), low-temperature plasma, and innovative nanocomposite-based packaging have been effective in maintaining Flammulina velutipesquality after harvest. Nevertheless, further discussions on the economic feasibility, safety, and sustainability of these technologies are essential for their practical and industrial applications in Flammulina velutipespreservation.

이 연구에서는 여성 주민에 대한 안면마사지 서비스 품질이 관 리 효과와 관리 만족 및 행동 의도에 미치는 영향에 대해 검증하 고자 하였다. 이 연구는 대전광역시 거주 경로당 이용 여성 주민을 대상으로 2024년 09월 10일부터 2024년 10월 10일까지 최종 250부의 설문지를 배부하고 수거하여 SPSS 25.0과 AMOS 25.0을 프로 그램을 활용하여 분석하였다. 결론적으로 노화로 인해 보이지 않는 스트레스에 시달리고, 자 아 존중감이 약화 된 노인 여성에게 안면마사지 프로그램은 그 건강성과 역동성을 회복시켜 주는 역할을 하여 스트레스를 완화 시키고 자아 존중감을 회복시키는 효과를 나타냈으며, 나아가 성 공적인 노화 및 안면 개선을 통해 적극적인 인간관계 개선 및 삶 의 질에 매우 도움이 된다는 효과적인 모델로 제시될 수 있음을 보여주고 있다.