This study was conducted to find out the effects of over seeding using new grass varieties orchardgrass ‘Kordione’ and ‘Onnuri’, and tall fescue ‘Greenmaster’ on botanical composition and dry matter productivity from 2013 to 2016 in low productivity hilly pasture, middle area of Korea. There were used 3 grass seed mixture types made of different compositions and amounts {T1: control - no over seeding, T2: tall fescue (TF) ‘Greenmaster’ 18 kg ha-1, orchardgrass (OG) ‘Kordione’ 9 kg ha-1, Perennial ryegrass (PRG) ‘Linn’ 5 kg ha-1, and Kentucky bluegrass (KBG) ‘Kenblue’ 2 kg ha-1, T3: TF ‘Greenmaster’ 9 kg ha-1, OG ‘Kordione’ 18 kg ha-1, PRG ‘Linn’ 5 kg ha-1, and KBG ‘ Kenblue’ 2 kg ha-1, T4: TF ‘Greenmaster’ 9 kg ha-1, OG ‘Onnuri’ 18 kg ha-1, PRG ‘Linn’ 5 kg ha-1, and KBG ‘Kenblue’ 2 kg ha-1}. In the botanical composition of grassland, T1 nearly remained constant in other seasons while ratio of weeds were increased in summer season. T2 was better than control (T1) in portion of grass ratio, which has increased by 80%. In the early time of establishment, the portions of OG were increased in T2, but TF rate was increased after 3 years later when grass was established. T3 and T4 showed a very similar patterns, grass ratio had increased by 80% and the portion of KBG had increased as time passed. T2 (129,763 kg ha-1) was showed the highest dry matter yield than other treatments (T1: 6,756 kg ha-1, T3: 9641, and T4: 10,738) in 2016.

This study was performed to investigate the quality characteristics of Yanggaeng, including color, pH, total polyphenol contents, and antioxidant activities, with the addition of aged garlic extract (0, 3, 6, 9 or 12%), aged at low temperatures. Among the color characteristics, the lightness value decreased, and the redness and yellowness values increased, proportional to the amount of garlic extract concentrate added to Yanggaeng. The pH of Yanggaeng significantly (p<0.05) decreased according to the amount of aged garlic extract added. Total phenol contents of control (0% aged garlic extract added Yanggaeng) was the lowest, followed by 3, 6, 9, 12% aged garlic extract added to Yanggaeng (88.15, 118.39, 156.91, 208.79 mg/g, respectively). Antioxidant activities, such as DPPH and ABTS radical scavenging activity, significantly increased with increase in the aged garlic extract concentration. In the sensory evaluation for Yanggaeng, 6% aged garlic extract added to Yanggaeng had the highest score in taste, flavor, and overall acceptance. Based on these results, it is suggest that the addition of 6% aged garlic extract to Yanggaeng can be developed as a product for the elderly.

The aim of this study was to evaluate key properties of the prickly pear cactus (Opuntia ficus-indica var. saboten (OFI) ie, levels of key chemicals (carotenoids, flavonoids and polyphenolic compounds as well as phenolic acid) and its antioxidative potential, depending on where the plant had been cultivated in Korea. The levels of flavonoids and polyphenolic compounds in OFI were 55.45~65.32 mg (+)-catechin/g and 149.00~181.15 mg gallic acid/g, respectively. Protocatechuic acid was the most abundant phenolic acid in the ON1 and ON2 (161.90 and 196.25 μg/g DW (dry weight)). Nineteen flavonoids were identified and analyzed by LC-ESI-MS in cladodes from OFI. Narcissin was the most abundant flavonoid in all of the samples (1,241.89~1,775.10 μg/g DW). Capxanthin and zeaxanthin were the most abundant carotenoids in OFI (64.88~128.08 and 48.10~93.82 μg/g DW). The level of DPPH radical and ABTS radical scavenging activities in OFI were 10.78~25.35 and 16.85~34.16 mg AA eq/100 g, respectively. OFI by cultivar has different kind of phenolic acid, flavonoids, and carotenoids. Therefore, dietary intake of cladodes from OFI may be helpful for improving human health

This study was conducted to investigate changes in the proximate composition, antioxidant activities, and α-glucosidase inhibitory activity of Opuntia ficus-indica (OFI) cladodes cultivated in Jeju (JJ1, JJ2, JJ3) and Jeonnam (JN1, JN2). The difference in the proximate composition (crude protein, lipid and ash content) of OFI between the two regions was not significant. Ca, Mg and Na were the major mineral components of OFI. The ascorbic acid content of OFI ranged from 57.87 to 143.72 mg/100 g. A 70% ethanol extract was used to investigate the antioxidant content and activity as well as the α-glucosidase inhibitory activity. The total polyphenol and flavonoid contents of OFI were 38.69~55.29 and 3.33~4.03 mg/g, respectively. The antioxidant activities based on the DPPH and ABTS free radical scavenging assays were 45.19~ 61.52% and 39.15~51.96%, respectively, at a concentration of 1 mg/mL. The inhibitory activity of OFI extracts against rat intestinal α-glucosidase was 29.72~45.73% at 1 mg/mL concentration, and JN1 showed the highest α-glucosidase inhibitory activity. This information could be very useful for authentication of Opuntia species with the highest potential as sources of nutritional and therapeutic elements.

This study aimed to investigate the concentration of vitamin C in Momordica charantia (MC) by cultivar, harvest time, and maturity. The methods for determining vitamin C levels were validated by measuring their linearity, specificity, limit of detection (LOD), limit of quantification (LOQ), precision, and accuracy using HPLC. Results showed high linearity in the calibration curve, with a coefficient of correlation (R2) of 0.9994. The LOD and LOQ values for vitamin C were 0.05 and 0.16 μg/mL, respectively. The relative standard deviations (RSDs) for intra- and inter-day precision of vitamin C measurements were 2.34 and 1.34%, respectively. Depending on cultivar, the concentration of vitamin C in MC varied from 20.75~107.31 mg/100 g, fresh weight, with an average level 68.85±25.57 mg/100 g, FW. When MC was analyzed by harvest time, the 20150612 MC showed the highest amount of vitamin C (113.20±1.89 mg/100 g, FW). On the other hand, the highest vitamin C content by maturity was 48.59±0.87 mg/100 g, FW (15 day old MC). This information on the comparative vitamin C levels of MC might be useful to food scientists and should be explored for functional food development.

This study was conducted to find out the effects of Improvement of Botanical Composition Technology (IBCT) on the forage production and ecological characteristics in a Rumex acetosella-dominated hilly pasture in Pyeongchang, in a period from August 2013 to the end of growing season in October 2015. 2MT ha－1 limestone was applied in August 2013 and April 2014. Liming significantly increased soil pH from 4.69 to 5.47 and then the soil pH consistently hovered at 4.91~4.98. For every grazing time, plant height was found to be higher with the application of IBCT as compared with the control. After grazing, no significant difference in plant height was found between the IBCT group and the control. Changes in the botanical composition of grassland can be affected by a lot of circumstances, but application of IBCT decreased Rumex acetosella from 12% to 2%, while also increasing the proportion of pasture. In relation to the botanical composition of grass, orchardgrass and timothy showed the highest percentages throughout the whole study period. The proportion of Kentucky bluegrass increased over time while tall fescue steadily decreased. The totals for grazing days were 58 in 2014 and 55 in 2015. Average herbage dry matter intake was 7,848 kg ha－1 in 2014 and 6,941 kg ha－1 in 2015. Due to the application of IBCT, dry matter productivity showed a significant increase of 59% during the first grazing period in 2014 (3,437 kg ha and 5,460 kg ha in control and IBCT). In 2015, the total dry matter yield of the IBCT group was 51% greater than the control (5,742 kg ha－1 and 8,685 kg ha－1 in control and IBCT). Under acidic soil conditions, red sorrel can grow more strongly than grasses because it has better tolerance in dry and acidic conditions. Therefore, constant management is required in order to keep red sorrel from dominating the hilly pasture. In this study, the application of IBCT was able to effectively control weeds at all points. As a result, total management, including improvement of soil, overseeding, and application of selective herbicide and fertilizer, is needed to maintain excellent grassland conditions due to the limiting effects of environmental factors on grassland productivity.

The aim of this study was to investigate the method validation for the determination of loganin content in Cornus officinalis (CO). This medicinal plant reportedly mainly included loganin. The specificity, linearity, precision, accuracy, limit of detection (LOD), and quantification (LOQ) were measured by HPLC/DAD. Our results showed that high linearity in the coefficient of calibration correlation (R2) for loganin standard was 1. LOD and LOQ for loganin were 0.007 and 0.026 mg/mL, respectively. The recovery rate of loganin was revealed to be in the high range of 95.14-105.45%. The relative standard deviation of intra- and inter-day precision of loganin in CO was 1.8% and 2.3%, respectively. The loganin content of CO from Gurye, Uiseng, Ichoen, and China were 7.81, 3.41, 7.42, and 6.52 mg/g, respectively. In conclusion, these methods were validated for the detection of loganin in CO.

This study was performed to investigate the content of carotenoid (α-carotene, β-carotene, β-cryptoxanthin, capxanthin, lutein, lycopene, zeaxanthin) and physicochemical characteristics (size, color, dietary fiber, total tannin content) of unripen and ripen persimmons (Diospyros kaki) by seven cultivars. The length of the unripen and ripen persimmons ranged from 40.87-64.75 and 48.80-80.29 cm, the width were from 44.03 to 66.73 and 57.65 to 91.53 cm, respectively. Ripen persimmons were showed in the highest Hunter’s L, a and b values. Total tannin content were resulted of unripen- and ripen persimmons ranged from 7.58 to 19.80 and 2.36 to 5.85 mg/g. Total carotenoid content were from 1.09 to 6.45 and 7.46 to 29.46 μg/g, respectively. From the above results, unripen- and ripen persimmon fruit could be useful for the health functional food.

This study performed to investigate the changes in S-allyl-L-cysteine (SAC) content of garlic with different cooking methods. Methods for determining SAC was validated by determining specificity, linearity, limit of detection (LOD), limit of quantification (LOQ), precision and accuracy using HPLC-FLD system. Results showed high linearity in the calibration curve with a coefficient of correaltion (R 2 ) of 0.9999. The LOD and LOQ values for SAC were 0.15 and 0.49 μg/mL, respectively. The relative standard deviations (RSDs) for intra- and inter-day precision of SAC were less than 5%. The recovery rate of SAC was in the range from 97.35% to 97.47%. The SAC content of raw garlic was 2.77 mg/g, and there are no significantly difference among blanching and microwave treatment in SAC content. However, SAC content of boiling, autoclaving at 110℃ and 121℃ increased in the range of 3.50~9.19 mg/g, 6.52~16.21 mg/g and 14.15~50.24 mg/g as increasing cooking temperature and time, respectively.

수확시 숙기와 조제방법이 호밀 라운드베일 사일리지의 건물 손실률과 형태변화에 대한 영향을 구명하기 위하여 3 가지 시험을 수행하였다. 호밀은 3번의 생육단계에 맞춰 수확하였으며 (수잉기, 출수기 및 개화기) i) 예건 (비예건,단기예건, 장기예건)에 따른 변화, ii) 유산균첨가제 (무처리, 첨가제 A 및 첨가제 B) 처리에 따른 변화, iii) 비닐색 (백 색, 흑색, 녹색)에 따른 변화를 관찰하였다. 수잉기 및 비예 건 처리구에서 저장 2개월 후의 형태 변화가 심하게 나타 났다. 그러나 출수기 이후의 수확 처리구에서는 변화정도 가 심하지 않았다. 첨가제 처리는 사일리지의 형태변화와 건물 손실률을 감소시켰다. 건물 손실률은 수확이 지연되 거나 첨가제 처리로 유의적으로 감소되었다. 수잉기 처리 에서는 형태변화가 심하게 관찰이 되었는데 첨가제 처리구 가 비 처리구보다 형태변화가 더 심하게 일어났다. 흑색비 닐 처리는 다른 비닐색에 비해 형태변화가 심하게 일어났 으나 건물 손실률은 비닐색에 따른 차이가 없었다. 상관관 계에서는 수확시 숙기와 예건기간이 형태변화와 정의 상관 이 있는 것으로 나타났다. 이상의 결과를 종합하여 볼 때 건물함량은 사일리지의 형태변화에 영향을 주는 가장 큰 요인으로 나타났다.

은행 가공산업에서 부산물로 제거되는 은행 외종피의 활용성을 증대시키고자 다양한 생리활성에 미치는 열처리의 영향을 살펴보았다. 은행 외종피를 분리하여 130℃에서 2시간 열처리한 후 물, 70% 에탄올 및 80% 메탄올 추출물을 제조하여 생리활성변화를 살펴본 결과, ABTS와 DPPH 자유라디칼 소거활성은 80% 메탄올 추출물을 제외하고, 열처리 후 증가하는 경향을 보였으며, 물 추출물에서 각각 14.95 mg AAE/g과 7.36 mg TE/g으로 높게 나타났다. α-Glucosidase 저해 활성은 물 추출물을 제외하고 열처리 시 감소하는 경향을 보였으며, 열처리 전 80% 메탄올 추출물에서 98.66%로 가장 높게 나타났다. Angiotensin converting enzyme I 저해 활성은 추출물 간의 유의적인 차이가 없었으며(P>0.05), 열처리 후 모두 감소하였다. 산화질소 생성억제 활성은 열처리 시 증가하였으며, 물 추출물(200 μg/mL)이 12.33 μM로 LPS 처리구에 비해 산화질소 생성량을 72.39% 감소시켰다. 지방구 축적억제활성은 세포독성을 보이지 않는 농도에서 열처리 시 감소하였다. 유방암 세포주에 대한 항암 활성은 열처리 후 증가하는 경향을 보였다. 이상의 결과로부터 은행 외종피 추출물의 다양한 생리활성을 확인하였으며, 특히 열처리 후 항산화 활성과 유방암 세포주에 대한 증식억제 활성이 크게 증가하였으며, 추후 생리활성물질의 규명 연구가 필요하다고 판단된다.

본 시험은 국내에서 육성된 신품종 사료작물의 생산성 및 사일리지 품질을 평가하기 위하여 수행되었다. 호밀(곡우), 귀리(삼한), 3품종의 이탈리안라이그라스(코그린, 코스피드, 코위너리) 및 2품종의 청보리(영양, 유연)에 대하여 생산성 시험을 국립축산과학원 초지사료과 시험포장에서 수행하였다. 건물수량에 있어서는 곡우가 가장 높았고 삼한이 가장 낮게 나타났다. 조단백질(CP) 함량은 귀리(삼한)외 이탈리안라이그라스 품종들에서 높았다. 가소화영양소총량(TDN)은 호밀을 제외하고는 비슷한 수준을 보였다. 귀리(삼한) 사일리지의 pH는 비교된 사료작물중에서 가장 낮았다. 또한 코그린과 삼한 품종에서 젖산균함량이 가장 높게 나타났다. Flieg 점수에 따른 사일리지 품질등급은 호밀을 제외하고는 모두 1등급으로 나타났다. 이상의 결과를 종합하여 볼 때 국내에서 육성된 사료작물 품종은 생산성과 품질면에서 높은 능력을 보여 한국에서의 조사료 생산에 적극 권장된다고 하겠다.

본 연구는 근적외선분광법을 이용하여 우리나라에서 재배되고 있는 목초류 중 외형적 특성이 유사한 이탈리안 라이그라스, 페레니얼 라이그라스와 톨 페스큐 종자의 초종 판별 가능성을 검토하고자 수행되었다. 근적외선분광기를 이용하여 목초류 종자를 가시파장 대역대(680~1,099 nm), NIRS 파장 대역대(1,100-2,500 nm) 및 NIRS 전체 파장 대역대(680-2,500 nm)로 구분하여 스펙트라를 얻은 후 1차 미분과 8 nm gap으로 수 처리를 수행하였으며 부분최소자승(PLS) 회귀분석법을 통해 초종판별 검량식을 개발하고 판별 정확성을 검증하였다. 목초류의 초종판별 정확성은 가시파장대역에서 SECV 1.732, R2CV 0.96으로 가장 판별 정확성이 낮았으며 NIRS 전체 파장대역에서 SECV 1.182, R2CV 0.98로 가장 높은 판별 정확성을 나타내었다. 파장대역별 예측 정확성은 NIR 파장대역(1,100-2,500 nm)에서 교차검증오차(SECV) 1.319에서 예측 오차(SEP) 1.288로 낮아졌으며 가시영역대(680~1,099)는 SECV 1.732에서 SEP 1.749로 약간 높아졌다. Discrimination equation 분석법에 의한 NIRS 전체 파장대역별 목초류 초종의 판별 결과는 초종간에 판별 정확성의 차이가 크게 나타났으며 이탈리안 라이그라스의 ‘Hits’는 68%로 가장 낮았으며 페레니얼 라이그라스가 78%의 정확성으로 가장 높게 나타났다. 따라서 NIRS를 이용한 목초류 초종의 판별분석이 가능할 것으로 판단되었다.

본 시험은 파종방법과 질소시비 수준이 총체벼의 수량 및 사료가치에 미치는 영향을 구명하기 위하여 수행되었다. 총체 벼는 국립식량과학원에서 육성된 “남일벼”를 이용하여 직파는 4월 25일, 이앙은 5월 25일에 하였다. 질소시비량은 총 5개 수준(90, 110, 140, 170 및 200 kg/ha)을 두고 수행되었다. 출현일, 출수일 및 내병성은 처리간에 차이가 나타나지 않았다. 그러나 녹색도는 질소시비량이 많아짐에 따라 짙어졌다. 초장은 질소시비량이 많아짐에 따라 커졌으며 분얼수도 증가되었고 직파보다 이앙구에서 더 많았다. 건물함량은 질소시비량에 따른 일정한 경향을 나타내지 않았으나 생초 및 건물수량은 질소시비량이 증가함에 따라 유의적으로 늘어났다(p<0.01). 수량은 이앙하는 것이 직파하는 것보다 유의적으로 많았으며(p<0.01) 직파시는 140 kg/ha, 이앙시에는 170 kg/ha 질소 시비구에서 각각 최고의 수량을 나타내었다. 조단백질 함량은 질소시비량이 늘어남에 따라 증가하였으나 파종방법 간에는 차이가 없었다. ADF 및 NDF 함량은 질소시비량이 늘어남에 따라 증가되었으나 TDN 함량은 질소시비량이 늘어남에 따라 감소되었으며, 일정한 경향이 없었다. 이상의 결과를 종합하여 볼 때 총체 벼 재배시 질소시비량이 높을수록 생초 및 건물수량이 증가되지만 수량과 토양환경을 고려하여 적정 질소시비량은 140 kg/ha가 권장되었다.

The online game market has rapidly increased worldwide, especially in China. In 2012, the world game market equaled 111.7 billion. Many game companies compete by launching new online games in various genres. In 2010, Activision Blizzard reported that the World of Warcraft (WOW) is the world’s most popular online game. Chinese gamers constitute more than half of WOW’s 10 million users. Korea is the second largest gaming market. Thus many foreign game companies target Korea and China, in competition with domestic game companies. The purposes are 1) to understand the role of country of origin and /or brand image in game consumer behavior, 2) to find out the difference of game evaluation between game users in China and Korea, and 3) to draw strategic implication game marketers. Consumers expect products from advanced countries to provide superior performance, so they often look to country of origin in evaluating products. Recently, consumers have looked to brand image as another key element in product evaluation. In this research, we study whether gamers evaluate games on the basis of country of origin and/or brand image. In this paper, we add to the gaming research and suggest that the online game market has three dimensions. First, online games are products. Second, online games are service. Last, online games are entertainment. Data collection resulted in 355 usable responses from online game (LOL) users in Korea(166) and China(189). We conduct factor analysis and reliability analysis to check reliability and validity. Country of Origin is the key element for product evaluation of utilitarian goods but it doesn’t have significant effect on product evaluation of hedonic products which mainly provide sensual pleasure, fantasy, and fun to customers such as luxury goods or online game (Dhar & Wertenbroch, 2000).

This research examines the causal relationships between supervisor trust and organizational citizenship behavior(OCB) and the mediating role of organizational trust on OCB. Using the sample of 282 small and medium sized enterprises’ employees, this study analyzes three alternative hypotheses centered around supervisor trust, organizational trust, and OCB. The results show that supervisor trust has a strong positive effect on OCB. Second, organizational trust is positively related to OCB. Third, this research proves that partial mediating effects of organizational trust exist between supervisor trust(relational trust) and OCB(civic virtue, sportsmanship). Finally, this research proves that a full mediating effect of organizational trust exists between supervisor trust(calculative trust) and OCB(sportsmanship). This study recommends supervisor trust, organizational trust be valued in order to increase OCB vital for organizational effectiveness or productivity in small-medium sized manufacturing enterprises.

본 논문에서는 Pebax-2533 판형 분리막을 1-프로판올과 n-부탄올 혼합용매를 이용하여 용해, 건조하여 제조하였고 time-lag 장치를 이용하여 CO2, N2 투과특성을 평가하였다. 제조된 분리막은 평가조건에 따라서 130-288 barrer의 CO2 투 과율을 가졌으며, CO2/N2 투과선택도는 5-8이었다. Time-lag 장치의 주입부 압력이 증가함에 따라서, 투과온도가 낮아짐에 따라서, 그리고 혼합용매의 n-부탄올 양이 증가함에 따라서 CO2 투과도는 감소하였다. 이러한 실험 자료는 Pebax-2533 분리 막의 CO2 투과율이 CO2 용해에 매우 의존할 것이라 예측과 달리, CO2 용해뿐만 아니라 CO2 확산도 매우 중요한 단계임을 의미하였다.

Near infrared reflectance spectroscopy (NIRS) has become increasingly used as a rapid and accurate method of evaluating some chemical compositions in forages and feedstuff. This study was carried out to explore the accuracy of near infrared spectroscopy (NIRS) for the prediction of chemical parameters of fresh whole crop barley silages. A representative population of 284 fresh whole crop barley silages was used as a database for studying the possibilities of NIRS to predict chemical composition. Samples of silage were scanned at 1 nm intervals over the wavelength range 680~2,500 nm and the optical data were recorded as log 1/Reflectance (log 1/R) and were scanned in fresh condition. NIRS calibrations were developed by means of partial least-squares (PLS) regression. NIRS analysis of fresh whole crop barley silages provided accurate predictions of moisture, acid detergent fiber (ADF), neutral detergent fiber (NDF), crude protein (CP) and pH, as well as lactic acid content with correlation coefficients of cross-validation (R2cv) of 0.96, 0.81, 0.79, 0.84, 0.72 and 0.78, respectively, and standard error of cross-validation (SECV) of 1.26, 2.83, 2.18, 1.19, 0.13 and 0.32% DM, respectively. Results of this experiment showed the possibility of the NIRS method to predict the chemical parameters of fresh whole crop barley silages as a routine analysis method in feeding value evaluation and for farmer advice.

본 연구는 질소 시비에 의해 증가된 토양 질소가 식물 의 성장 및 식물체의 화학적 조성에 미치는 영향과 이로 인한 분해에서의 변화를 확인하고자 야외성장실험과 분 해실험을 진행하였다. 온실에서 질소 시비구와 비시구 토 양에 각각 벼를 재배하였으며 식물이 성숙한 뒤 수확하 여 C, N, lignin, cellulose 함량을 측정하였다. 대조구와 질 소 처리구 토양에서 재배된 식물의 개체 당 평균 건중량은 각각 0.70 g, 1.32 g로 질소 시비에 의해 1.9배 증가하였 다. 식물체의 N 및 C 함량은 질소 시비에 의해 증가하였 고 lignin, C/N, lignin/N, cellulose/N은 감소하였다. 이후, 수확된 식물의 지상부는 microcosm 분해실험에 이용되었 으며, 분해 식물체에서 건중량의 변화, microbial biomass C와 microbial biomass N, 그리고 dehydrogenase와 urease 활성을 측정하고, 분해과정 중 발생하는 CO2의 양을 정량하였다. 대조구 토양에서 분해시킨 대조구 식물체와 질소 처리구 식물체, 그리고 질소를 처리한 토양에서 분 해시킨 질소 처리구 식물체의 잔존량은 각각 초기 건중 량의 53.0%, 47.1%, 53.6%를 나타내었다. 질소 시비는 식 물체에서 N 함량을 높이고 C/N 및 lignin/N을 낮추어 식 물체의 분해를 촉진하였으나, 분해 과정에서의 토양 질소 처리는 분해를 억제하였다. 질소 시비에 의해 토양에서 microbial biomass C와 dehydrogenase 활성은 감소하였 고, 반면에 microbial biomass N과 urease 활성은 증가하 였다. 분해 중 발생한 CO2의 양은 30일 이후부터 질소 시 비에 의해 감소하였다. 분해 식물체에서 측정된 microbial biomass C는 질소 처리에 의해 초기에 증가하였으나 이 후 저해되는 양상을 나타냈으며 microbial biomass N은 유의한 차이를 보이지 않았다. 질소 시비에 의해 분해 식 물체에서 dehydrogenase 활성은 저해되었으며 urease는 분해 초기에 가장 높은 활성을 보였으나 분해 후기에 현 저한 감소를 나타냈다. 본 실험에서 질소 시비는 식물의 성장을 증가시키고 식물체의 N 함량을 높여 화학적 조성 의 변화를 일으키며 분해율을 증가시키나 분해 단계에서 질소의 시비는 미생물의 활성을 억제시켜 분해를 저해하 는 결과를 나타내었다.

본 연구에서는 참나물의 처리 조건에 따른 이화학적 특성 및 항산화 활성의 변화를 살펴보기 위하여 씻기, 데치기 및 찌기에 따른 특성 변화를 살펴보았다. 원료 참나물의 조단백질 함량은 24.43%, 조지방은 9.02%, 회분은 17.74% 그리고 식이섬유는 33.50%이었다. pH는 5.99～6.49 범위로 데친 참나물이 높았고, 찐 참나물이 5.99로 낮았다. 색의 L 값은 열처리에 따라 감소하였으며, 녹색을 나타내는 －a값은 데친 참나물이 크게 나타났다. β-Carotene은 원료에 비해 씻은 참나물은 18%, 데친 참나물은 54% 그리고 찐 참나물은 10% 증가하였다. 엽산은 씻은 참나물, 원료, 찐 참나물 및 데친 참나물이 각각 848.87, 772.16, 271.54 및 260.74 ㎎/100 g으로 씻은 참나물이 높게 나타났다. 주요 무기성분은 K, Ca, Na 및 Mg 이었으며, K이 93.13～244.38 ㎎/100 g으로 가장 높았다. 총 polyphenol 및 flavonoid 함량, DPPH radical 소거능 모두 데친 참나물, 찐 참나물, 씻은 참나물, 원료 참나물 순으로 높았으며, 비가열 처리보다 가열 처리에서 항산화 성분 및 생리활성이 높게 나타났다.