This study is a literature review on berries and their cooking methods that appear in ancient and modern Korean literature. Due to recent reports on berries’ excellent functionality and the public’s growing interest in healthy living, berries have been attracted attention as promising forms of sustenance. By structuring and classifying the types of berries and their popularity as well as recipes using berries found in ancient and modern Korean literature, this review hopes to serve as an important source that reflects both the food culture and social aspects associated with the value of berries in the lives of Korean people as well as foster understanding of the superiority of Korean food culture. This study will also have implications on the possibility of integrating antioxidant-rich berries into the modern food landscape. The study results are summarized as follows. Types of berries were classified into six types (Korean cherry, Omija, Gugija, Bokbunja, Black cherry, Mulberry) while cooking methods were classified into five types (Korean traditional snack, Korean traditional beverage, Liquors, Porridge, Pilule) in the ancient and modern literature of Korea. The aim of this literature review is to highlight the valuecreating aspect of berries as food materials that can yield high added-value products. Beyond their value as healthy fruits, this study will explore the features of berries that enhance their added value and brand marketing as well as their aspects suitable for application to the modern industry of berry product development.
Marinated beef galbi is a traditional Korean dish cooked with soy sauce, pear juice, onion, sesame oil, and sugar. However, there are many differences in beef galbi, including flavor and physicochemical aspects, depending on cooking conditions. Therefore, the physicochemical characteristics of marinated beef galbi prepared through various recipes was evaluated for its effects on pH, texture, aging, proteolysis, heating conditions, cooking time, and flavor compounds (pyrazines, IMPs, or FAAs). There were significant differences in salt concentration (0.8~3.03%), pH (4.89~6.22), and solid soluble contents (1.34-6.31 Brix) between recipes in this study. In the Pearson assay for sensory evaluation, overall preference correlated well with texture (a well-known sensory attribute in meat evaluation). Controlling the pH of meat through soaking in lemon solution, alkali water, phosphate, and baking powder solution, improved water holding capacity as much as 9 to 15% compared with the control. The myofibril index (MFI) of marinated meat stored at 4℃ increased 32% with 24 hours of aging and reached 39% at 48 hours of aging, and its fragmentation was observed through microscopy. SDS-PAGE showed hydrolysis of acid-soluble collagen by the pear juice, possibly related to meat tenderness. On the basis of surface temperature, the cooking time was estimated to be 8 minutes with pan heating at 170℃, 6 minutes at 270~300℃, and 4 minutes with charcoal at 700~900℃. Different pyrazine compounds, such as 2-methyl-3-phenylpyrrol(2,3-b) pyrazine (the typical product of the browning reaction) was mainly detected, and IMP (one of the main taste compounds in beef) was in higher amounts with the charcoal treatment, potentially related to its flavor preference among treatments. Our results demonstrate an effective case study and cooking system for beef galbi.
Seolleongtang, a traditional broth in Korea, is expected to become a hot global item for its unique flavor and healthiness. In this study, the correlations between sensory attributes and physicochemical characteristics were studied for the popular seolleongtang stock products through descriptive analysis, sensory evaluation and analysis of salt, soluble solid, protein, viscosity and color for the quality control. Our results indicate that color, concentration, viscosity, and freshness are important attributes in evaluating the quality of seolleongtang stock. There were significant differences between preference and sensory attributes among the stock products. Significant correlations were found between flavor and texture and overall acceptability, as well as beany odor and aroma. Preference and physicochemical aspects also correlated, and indicate that a range of salt, solubility, and viscosity are applicable as quality control factors in seollengtang stock.
과요오드산-산화전분으로 Aspergillus sp. α-amylase를 변형시켜서 인공당단백질을 만들었다. pH 8.0에서 변형한 효소는 비변형효소의 87%, pH 9.7에서 변형한 효소는 80%의 활성이 남았다. 60℃에서의 열안정성은 α-cyclodextrin (α-CD) 존재 하에 변형하고 α-CD 존재 하에 분석한 효소가 가장 높았다. pH 안정성은 변형시켜서 α-CD 존재하에 분석한 효소가 가장 높아서 pH 3∼4와 9∼11에서 안정성이 매우 증가하였다. HPLC 분석 결과 변형시킨 것은 당결합으로 분자량이 커져서 유출시간이 빨라졌다. 반응산물 분석 결과 기질 특이성의 변화는 나타나지 않았다.