• 대한가정학회지
• /
• 제25권4호
• /
• pp.57-62
• /
• 1987

To obtain basic data for the decvelopment of Kimchi preservation method, optimal ripening Kimchi was air-packaged with polyethylene bag, and followed by the microbiological, firmness and sensory evaluations during storage at 5$^{\circ}C$. 1. Total aerobic count increased in the beginning of storage and then decreased slowly as the number of total Lactic bacteria(anaerobe) in creased. 2. Textural parameters were remarkably changed according to the elapse of storage period. 3. Sensory evaluation showed that the score was decreased considerably 10 days after storage.

• 한국식품영양과학회지
• /
• 제36권2호
• /
• pp.216-221
• /
• 2007

원부재료에 부착된 미생물을 김치제조 전에 오존 및 방사선 조사를 실시하여 미생물을 감균시키고 위생화된 재료로 김치를 제조하였을 때의 미생물학적, 화학적 및 관능적 변화를 측정하였다. 대조군 맛김치의 미생물 변화는 총균수의 경우, 저장기간이 증가할수록 빠른 속도로 증가한 후 저장 10일 이후부터는 서서히 감소하였다. 그러나 오존 및 방사선 처리군의 경우에서는 대조군에 비하여 서서히 증가하는 경향이었다. 젖산균수의 경우에는 대조군은 오존 및 방사선 처리군에 비하여 다소 낮은 변화를 보이는 것으로 나타났다. 효모 및 곰팡이수의 변화는 대조군이 가장 높은 균수를 저장기간 내내 유지하였으나 오존 및 방사선 처리군은 대조군보다 낮은 균수를 보였으며 그 변화는 3 kGy와 5 kGy가 가장 적은 것으로 나타났다. pH 및 산도의 변화에서도 대조군은 빠른 속도로 변화되었으나 오존 및 방사선 처리군의 경우는 서서히 변화되었으며 오존 및 방사선 처리군 중에서는 3 kGy와 5 kGy 처리군이 가장 변화가 적었다. 저장기간에 따른 관능검사 결과는 발효가 진행됨에 따라 대조군은 빠른 품질변화를 보였지만 오존 및 방사선 처리군은 발효의 진행이 서서히 일어나 품질 유지기간을 연장시키는 것으로 나타났다.

• 한국식품저장유통학회지
• /
• 제8권4호
• /
• pp.393-398
• /
• 2001

김치첨가에 따른 해물만두의 저장효과를 조사하고자 김치를 농도별로 첨가하여 제조한 해물만두를 2$0^{\circ}C$에서 저장하면서 저장성에 관련된 주요성분을 조사하였다. 저장 중 해물만두의 pH는 전체적으로 감소하는 경향이었으며, 김치 첨가 농도가 높을수록 높게 나타났고, 총산은 반대의 결과를 보였다. 산가는 저장중 전체적으로 증가하였는데, 김치첨가 해물만두가 대조군에 비하여 낮게 나타났고, 과산화물가의 경우도 김치첨가 해물만두가 대조군에 비하여 과산화물가가 적었으며, 김치첨가 농도에 반비례하였다. TBA가와 VBN 함량은 저장기간에 따라 증가하였고, 김치의 첨가량에 비례하여 낮았다. 생균수는 지장 2일째가지는 급격하게 증가하다가 3일 이후에는 조금씩 증가하는 경향이었는데, 김치 첨가량에 비례하여 생균수의 증가폭이 적게 나타났으며, 대장균의 경우도 생균수의 경우가 같은 경향이었다. 관능검사 결과 20% 김치첨가 해물만두가 가장 우수한 결과를 나타내었다.

• 한국식품영양과학회지
• /
• 제36권6호
• /
• pp.794-799
• /
• 2007

본 연구에서는 얼갈이배추김치, 열무김치 및 열무물김치를 제조하여 저장기간 동안 품질특성 및 질산염 함량의 변화를 측정하였다. 얼갈이배추김치와 열무김치는 실온 숙성을 거쳐 저장 4일까지 pH 감소가 두드러지게 나타난 반면 열무 물김치는 저장기간 18일 동안 pH가 지속적으로 감소하였다. 산도의 경우 얼갈이배추김치와 열무김치는 pH 변화와 반비례하여 저장 초기에 급격히 증가하였으며, 열무물김치도 이와 비슷한 경향을 나타내었다. 총균수와 젖산균수는 열무김치와 얼갈이배추김치의 경우 발효 4일부터 18일까지 최대치를 기록한 후 감소하였다. 반면 열무물김치의 총균수와 젖산균수는 발효 4일째 최대치에 도달한 후 감소하기 시작하였다. 이러한 김치의 발효과정 중 미생물 변화의 결과는 일반 배추김치에서의 미생물 변화 양상과 유사하였다. 질산염 함량의 변화를 조사한 결과 얼갈이배추김치의 질산염은 담금 직후와 비교하여 실온 발효에 의해 유의하게 감소하였으며 이후 저장기간에도 감소가 지속되어 담금 직후 대비 11%가량 감소폭을 나타내었다. 열무김치와 열무물김치의 질산염 함량도 비슷한 변화 양상을 보이며 열무물김치는 담금 직후 대비 12%, 열무물김치는 5%가량 감소하는 것으로 나타났다.

• 한국식품조리과학회지
• /
• 제26권2호
• /
• pp.188-197
• /
• 2010

In this study, the quality characteristics and storage properties of gat kimchi added with oyster shell powder and Salicornia herbacea powder were investigated during a storage time of 80 days at $5^{\circ}C$. After storage for 80 days, the average calcium contents were significantly higher in the kimchi containing the oyster shell powder and Salicornia herbacea powder than the control. In addition, the average hardness value was significantly higher in the OS4 group(oyster shell powder at 4% and Salicornia herbacea powder at 2%) than the control group, as well as the OS10 group(oyster shell powder at 10% and Salicornia herbacea powder at 2%) during storage for 80 days. The hunter b value of the OS4 group was significantly lower than the control group. During fermentation, gat kimchi containing the oyster shell powder and Salicornia herbacea powder had a higher pH and a lower acidity value than the control group. In terms of sensory evaluation, there were no significant differences between the control and calcium-added kimchi during fermentation. After 40 days of storage, the OS4 group showed a lower total viable count, as well as lower lactic acid bacteria, yeast and E. coli, as compared with the control and OS10 groups. Based on the microbial load, the gat kimchi containing the oyster shell powder showed limitations in terms of shelf life.

• 대한가정학회지
• /
• 제31권4호
• /
• pp.193-200
• /
• 1993

This study was conducted to examine the effects of the level of salted shrimp on the characteristics of kimchi fermented at 2$0^{\circ}C$ for one day and then stored at 4$^{\circ}C$ for 3 or 6 days. The sensory characteristics, pH, total acidity and salt content of kimchi, prepared to have an equal intensity of salty taste, with three levels of salted shrimp and NaCl, were measured. Instron universal testing machine also was used to examine the firmness of kimchi. As the level of salted shrimp and storage periods increased, intensity of translucency, sour odor, carbonic mouthfeel, toughness and sour taste of kimchi increased while firmness and crispness decreased. There was no significant difference in pH among the kimchies. However, total acidity of kimchi increased as the level of salted shrimp increased and the storage period was extended.

• 한국식생활문화학회지
• /
• 제32권4호
• /
• pp.303-310
• /
• 2017

Kimchi cabbage is in demand all year, but there is an unbalance in its supply and demand due to climate reasons, requiring practical methods for extending storage without high cost. Therefore, this study aimed to assess available storage methods. 'Choongwang' Kimchi cabbages cultivated in Pyeongchang, Gangwon-do were on June 14 harvested and packed in plastic boxes. Control group was treated by loading four to five heads. Moisturized paper was applied as a liner inside the box to prevent dehumidification and damage to the cut root parts, and a small loading amount (three heads) was applied for better air circulation. Weight loss rates after 12 weeks of storage were 13.83% in the control group, 12.57% in the first group, and 13.38% in the second group. Trimming loss rates after 9 weeks of storage were 14.96% in the control group, 12.29% in the first group, and 12.55% in the second group. As a result of the sensory test, the control group lost its marketability after 6 weeks of storage, while the second group maintained it until 9 weeks and the first group maintained it until 12 weeks and scored higher than 6 points. Therefore, the tested methods were effective for extending the freshness of Kimchi.

• 한국식품영양학회지
• /
• 제30권1호
• /
• pp.175-180
• /
• 2017

To enhance the physiological activities and reduce the off-flavor of garlic in the Kimchi, we manufactured the Kimchi seasoning replaced with 25~75% black garlic instead of raw garlic and measured the contents of antioxidants and antioxidant activities. The polyphenol compound content was $270.91{\mu}g/mL$ in the control and $278.18{\sim}305.75{\mu}g/mL$ in the Kimchi seasoning with black garlic. The polyphenol compound content increased by increasing the amount of black garlic in the Kimchi seasoning. The polyphenol compound contents gradually decreased during storage period. The flavonoid compound content was 26.18 mg% in the control and 26.80~38.72 mg% in the Kimchi seasoning replaced with 25~75% black garlic. The flavonoid compound contents increased by increasing the amount of black garlic. The flavonoid contents were different from those of polyphenol compounds during storage periods. In the case of DPPH electron donating abilities, DPPH electron donating ability of the control was 84.82%, which showed a lower antioxidative activity than the Kimchi seasoning replaced with black garlic. The electron donating abilities of the Kimchi seasoning replaced with black garlic were increased as the amount of black garlic was increased. In the lipid peroxidation test, the control showed no lipid peroxidation during the storage period. The Kimchi seasoning replaced with black garlic also inhibited lipid peroxidation during storage as in the control. However, it showed lower activity than the control. Reducing power was higher in the Kimchi seasoning replaced with black garlic than in the control. The higher the ratio of black garlic, the higher the reducing power.

• 한국식생활문화학회지
• /
• 제32권3호
• /
• pp.227-234
• /
• 2017

This study attempted to establish the optimal conditions for storage of spring kimchi cabbage to stably control supply and demand. To this end, this study stored kimchi cabbages in various manners for different periods and compared the quality characteristics of kimchi using these cabbages. According to the results, pre-drying with photocatalytic and pre-cooling treatments showed average selectivity loss rates of 18.83 and 21.37%, respectively, which were lower than those of other treatments. Spring kimchi cabbages were stored for 15 weeks under various conditions, and the kimchi was stored for 4 weeks at $4^{\circ}C$. After ripening, each kimchi was analyzed for their soluble solid content, pH, acidity, and salinity. The average pH of kimchi was 4.60 and tended to rise, whereas average acidity was 0.38% and fell by 0.24 to 0.31% as the storage period was extended. Extension of the storage period caused decreases in soluble solid content and salinity, and the number of lactic acid bacteria decreased due to increased pH and reduced acidity (p<0.05). Sensory evaluation showed that all experts and non-professionals preferred kimchi treated by precooling compared to any other treatment.

• 한국식생활문화학회지
• /
• 제31권2호
• /
• pp.188-193
• /
• 2016

The purposes of this study were to prolong the storage period and maintain quality of kimchi made from spring napa cabbage, which is used less frequently than winter napa cabbage. The results show that the firmness of kimchi from early July, the latest harvest period, was significantly higher than that of kimchi from mid-June. However, as maturation proceeded, no significant difference was observed following the harvest period when kimchi was stored for 8 weeks. Regarding pH and acidity, which are highly related to maturation of kimchi, pH generally decreased from the initial storage period while acidity increased. In the sensory evaluation, appearance was best in kimchi manufactured in late June according to manufacturing and maturation periods (p<0.05). After 4 and 8 weeks of storage, kimchi manufactured in early July had the highest scores with no significant difference. Texture and overall acceptability also showed no significant difference in each processing period.