• 한국축산식품학회지
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• 제38권1호
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• pp.1-13
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• 2018

The objective of this study was to investigate quality attributes of beef patties formulated with dried pumpkin pulp and seed mixture (PM). Four different meatball formulations were prepared where lean was replaced with PM as C (0% PM), P2 (2% PM), P3 (3% PM) and P5 (5% PM). Utilization of PM decreased moisture and increased ash content of the patties. Incorporation of 5% PM (P5) increased the pH value of both uncooked and cooked patties compared to C group. Increasing levels of PM increased water-holding capacity. No significant differences were found in cooking yield and diameter change with the addition of PM. Incorporation of PM increased fat and decreased moisture retention of the samples. $a^*$ values were decreased with PM addition, where $L^*$ values did not differ among treatments and $b^*$ values were similar in C, P3 and P5 samples. Textural properties were mostly equivalent to control samples with the incorporation of PM even at higher concentrations. The addition of PM did not significantly affect any of the sensory scores tested. These results indicated that utilization of PM presents the opportunity to decrease the amount of meat besides to improve healthier profile without causing negative changes in physical, chemical and technological quality of beef patties.

• 한국환경농학회지
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• 제34권3호
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• pp.186-191
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• 2015

BACKGROUND: Carotenoids which are a major source of vitamin A are contributed to have great potential role in anti-carcinogenic effects and eyesight. Carotenoids which can not synthesize in human body are required for food supply. The objectives of this study are to investigate compositions and contents of pumpkin (Cucurbita spp.) germplasms based on their pulp color. METHODS AND RESULTS: Carotenoids were extracted with 0.2% ascorbic acid in ethanol and saponified with 80% potassium hydroxide. Insoluble compounds were extracted into hexane. A total of nine carotenoids (three xanthophylls and six carotenes) were identified from pumpkin germplasms using HPLC equipped with photodiode array detector (450 nm). Especially, lutein and ${\beta}$-carotenes were major compound in germplasms. Among isomers of ${\beta}$-carotene, all-trans-${\beta}$-carotene (16-27% of total carotenoids) was predominant compositions. The mean of total carotenoid contents was showed as brown (286.1 mg/100 g dw) > dark green (217.0) > orange (153.4) > primrose (85.8) > dark yellow (80.3). On the basis of carotenoid information, PLS-DA score plots showed different patterns by cluster in pumpkin germplasms. It was considered that these differences of phenotype were relative closely to genotype. CONCLUSION: This study indicated that dark color of pumpkin pulp was presented in high-level of biological pigments. It may contribute to develop potentially beneficial functional food ingredients.

• 한국식품저장유통학회지
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• 제22권6호
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• pp.779-787
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• 2015

가을작형 억제재배한 미니단호박(품종 보짱)을 수확하여 세척 후 산지 저장고에서 $30^{\circ}C$, 7일간 큐어링 처리하였고, $8^{\circ}C$, $12^{\circ}C$, $12^{\circ}C$ 플라즈마 큐어링 및 대조구(실온) 네가지 조건에서 180일간 저장하면서 30일 간격으로 시료를 취해 상품성, 부패율, 수분함량, 경도, 과피 및 과육 색도, 가용성고형분, 전분질함량 및 관능평가의 품질 특성을 비교분석하였다. 네 처리구 모두 저장 120일까지 부패율이 없었고 상품성을 유지하였다. 대조구에서는 120일까지, $12^{\circ}C$에서는 90일까지 상품성이 4이상 우수하였다. 부패율은 대조구에서 120일 이후에 급격하게 증가하여 70% 이상이었으며, $12^{\circ}C$에서는 20~60%였고, $8^{\circ}C$와 $12^{\circ}C$ 플라즈마 큐어링 처리에서는 저장 150일 동안 부패율은 나타나지 않았다. 저장 중 수분함량은 $8^{\circ}C$ 저장에서 가장 낮았으며, 과육의 적색도는 $12^{\circ}C$ 및 $12^{\circ}C$ 플라즈마 큐어링에서 높게 나타났고, 과피의 녹색도는 저장기간 중 $8^{\circ}C$ 및 $12^{\circ}C$ 플라즈마 큐어링 조건에서 높게 나타났으며, 대조구 및 $12^{\circ}C$에서는 저장기간 중 진한 녹색이 황색으로 변하였다. 저장 초기에는 대조구 및 $12^{\circ}C$ 플라즈마 큐어링 조건에서 높은 경도를 나타냈으나, 저장기간이 길수록 $8^{\circ}C$가 높게 나타났다. 가용성 고형분 및 전분질 함량은 저장 90일까지 증가하다가 그 이후는 감소하였으며, $8^{\circ}C$에 저장한 단호박이 장기간동안 전분질을 가장 잘 유지하였다. 관능평가시 색, 맛, 분질감, 전체적 기호도는 $8^{\circ}C$, $12^{\circ}C$, 대조구, $12^{\circ}C$ 플라즈마 큐어링 저장조건 순서로 저장 중 단호박의 기호도가 높게 유지되었다.