• Mycobiology
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• 제51권6호
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• pp.445-451
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• 2023

Shiitake mushroom (Lentinula edodes) hold high nutritional and medicinal value as they contain an abundance of health-promoting compounds. However, the effect of long-term postharvest storage on the variation in the levels of health-promoting compounds has not been extensively studied. In this study, we investigated the changes in the levels of phenolic compounds, antioxidants, eritadenine, and ergothioneine in shiitake mushrooms stored at three different temperatures (1, 3, and 5 ℃) for 4 weeks. Compared to mushrooms stored at lower temperatures, those stored at 5 ℃ exhibited a higher level of total phenolics in their pileus after 2 weeks of storage; however, storage at 5 ℃ also increased the deterioration of the fruiting body of these mushrooms. In mushrooms stored at all temperatures, the eritadenine content in the pilei tended to increase up to 2 weeks of storage. In contrast, the ergothioneine content in the pileus decreased during storage, with a significantly lower level detected in mushrooms stored at 5 ℃ for 4 weeks. Together, these results suggest that the mechanisms underlying the accumulation of phenolics and eritadenine may be related to mushroom deterioration during storage. Our findings indicate that the levels of health-promoting compounds in shiitake mushrooms are influenced by storage temperature, suggesting the potential to control adjustments of specific bioactive compounds by regulating storage conditions.

• Journal of Forest and Environmental Science
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• 제22권1호
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• pp.83-100
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• 2006

Antibiotics which produced by mushrooms discovered for last 40 years were described. Any antibiotic has not been used as infectious disease remudy but will be used as physiological active substance in near future. The antibiotic of mushrooms have not been published much in papers and do not have various finds of structures, compared to those of Streptomyces. Triple bond having compounds, terpenoid compounds aromatic compounds and some other compound have been known. These compounds are not dissolved well in water and mainly fat-soluble, except for cordycepin. Also, they are generally neutral, and some of them are acidic and almost none of them are basic compounds. However, acetylene and terpenoid compounds are the characteristic compounds of mushroom, and are not found in other microorganisms and plants. Especially, there are various terpenoid compounds in mushrooms. These metabolites of mushrooms were not used as antibiotic, but are interested as physiological active substance, such as enzyme inhibitor and immunomodulator. To promote studying on the antibiotics of mushroom, new screening methods must be developed, because strain belonged to the different genus produces different antibiotics, even though mushrooms belonged to the same genus and species. It is also known that mushrooms collected in different areas produce different antibiotics. Now, it is difficult to separate each pure compound from mushroom. It is important to find mushrooms which is impossible to cultivate artificially, or grow in the back land where is difficult to collect. Thousands of mushrooms grow on earth now, so that which species will be screened if not known. The biochemical and mycological study for usability of the metabolites of mushrooms is thought, as one of the important research areas, must be performed.

• 한국축산식품학회지
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• 제40권5호
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• pp.772-784
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• 2020

This study was performed to investigate the effects of taste-related compounds and antioxidatve profiles of retorted samgyetang made from fresh and dried Cordyceps militaris (C. militaris) mushrooms. A total of 48 carcasses were prepared from commercial broilers (CB; Ross, 4 weeks old) and randomly distributed into eight different treatments. Each treatment group consisted of 6 chicken carcasses made with the addition of broth in different condition and concentration of C. militaris mushrooms. The addition concentration was based on the broth volume (v/w) under either fresh or dried conditions ranging from 0% as a control to 1%, 2%, and 3% of C. militaris mushrooms. C. militaris mushrooms contributed to an improvement of meat tenderness and the antioxidative profile that led to a greater suppression of lipid oxidation. The addition of C. militaris mushrooms at 2% could also enrich the flavor and taste-related compounds, particularly the increase in 5'-AMP and umami-related free amino acid compounds, L-aspartic acid and L-glutamic acid. Different addition forms of C. militaris mushrooms, particularly fresh or dried mushrooms, had only small effects on bioactive compounds, where the dried addition could possibly enrich samgyetang broth with higher cordycepin and adenosine contents than the fresh addition. Besides, the addition of C. militaris mushrooms in the dried form could also contribute to a higher antioxidative profile. Eventually, the addition of C. militaris mushrooms with a minimum addition of 2% contributed to an improvement of meat quality, antioxidative profile and flavor improvement of samgyetang.

• Natural Product Sciences
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• 제26권2호
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• pp.118-131
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• 2020

Mushrooms are known for their various attributes in the fields of nutrition and therapeutics. With exceptional taste, aroma, and nutritional value, they are considered 'functional food'-improving health and providing nutritional benefits to the body. Mushrooms have also been widely applied therapeutically as they possess diverse bioactive compounds known as secondary metabolites. These secondary metabolites demonstrated diverse biological properties such as anticancer, anti-diabetic, immunomodulatory, antimicrobial, anti-inflammatory, antiviral, anti-allergic, and antioxidative activities. This review presents bioactive compounds from the field of mushroom metabolite research and discusses important findings regarding bioactive compounds identified during the last five years (2015 - 2019).

• Mycobiology
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• 제41권4호
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• pp.171-176
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• 2013

Mushrooms are ubiquitous in nature and have high nutritional attributes. They have demonstrated diverse biological effects and therefore have been used in treatments of various diseases, including cancer, diabetes, bacterial and viral infections, and ulcer. In particular, polysaccharides, including ${\beta}$-glucan, are considered as the major constituents responsible for the biological activity of mushrooms. Although an overwhelming number of reports have been published on the importance of polysaccharides as immunomodulating agents, not all of the healing properties found in these mushrooms could be fully accounted for. Recently, many research groups have begun investigations on biologically active small-molecular weight compounds in wild mushrooms. In this mini-review, both structural diversity and biological activities of novel bioactive substances from Korean native mushrooms are described.

• Mycobiology
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• 제43권1호
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• pp.9-13
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• 2015

Medicinal fungi, taken whole or as various forms of extracts, have been used to alleviate, cure or prevent human ailments since pre-historic times. In particular, Asian cultures have incorporated a variety of mushrooms into their medical practices. Chemically pure, bioactive metabolites from fungi have been a mainstay of modern pharmacological research and in addition to antibiotics, include anticancer agents, immunosuppressants, enzyme inhibitors, antagonist and agonists of hormones, and a variety of psychotropic substances. However, to date not many studies have focused on the possible health benefits of odorant volatile organic compounds (i.e., gas phase compounds). An analysis of these compounds for their health related effects will expand the range of compounds available for the treatment of chronic and acute diseases. This review highlights phenolic acids and monoterpenes from Asian medicinal mushrooms (AMMs), which not only produce pleasant odors but also have antioxidant and antibacterial effects. Odorant bioactive volatile phase compounds from medicinal mushrooms remain an essentially untapped source for future medicines, and AMMs remain a promising resource for future pharmacological research.

• 한국버섯학회지
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• 제15권4호
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• pp.155-163
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• 2017

Mushrooms and their extracts including purified ingredients, are currently used as foods, functional foods (and/or nutraceuticals), and medicines. These products have numerous bioactive compounds such as polysaccharides (mainly ${\beta}$-glucans), glycoproteins, nucleotide analogs, terpenoids, and polyphenols, which have exhibited antioxidant, antimicrobial, anticancer, antiviral, anti-obesity, and immunomodulatory activities. In this review, we discuss the current information on the biactivities of 10 popular mushrooms in Korea. We also summarize the information on mushrooms and the active compounds derived from them, as well as mushroom-based products such as foods, functional foods, and medicines. We believe this review could provide useful information for scientists and consumers who seek to develop new products and promote healthy food habits and lifestyle.

• 한국식품과학회지
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• 제34권4호
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• pp.625-630
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• 2002

등급별 송이 버섯과 $-20^{\circ}C$와 $-70^{\circ}C$에서 급속냉동한 후 저장한 송이버섯의 일반성분과 AromaScan 및 GC/MSD에 의한 향기 특성을 비교 조사하였다. 일반성분의 경우 냉동하지 않은 송이 버섯은 수분 함량 $89.48{\sim}90.77%$, 회분은 건물량으로 환산하여 등외품인 D시료를 제외하고 6.81%, 단백질 $16.19{\sim}20.01%$, 지방 $2.24{\sim}2.52%$로 등급에 따라 차이가 없었고, $-20^{\circ}C$와 $-70^{\circ}C$에서 6개월 저장한 냉동송이 버섯도 냉동하지 않은 송이 버섯과 각 성분에 있어서 큰 차이가 없었다. 전자코에 의한 향 패턴 분석과 다차원 판별 분석을 실시한 결과 생송이 버섯은 등급별 차이가 거의 없게 나타났으나, 냉동 저장한 등급별 송이 버섯의 경우 분별화되는 경향을 보였다. 또 등급별 송이 버섯 및 냉동 송이 버섯을 GC/MSD에 의한 향기 성분 분석 및 동정한 결과 50여개의 peak가 검출되었으며, 이중에서 29개의 성분이 동정되었다. 동정된 휘발성 향기 성분중 1-octen-3-ol, 2-octen-1-ol, 3-methy-butanal이 공통적인 성분이었고, 등급이 낮아질수록 1-octen-3-ol 함량이 감소하였다. 각 등급별 생송이 버섯 및 냉동 송이의 이취, 향미 등의 관능검사 결과 생송이 버섯은 등급간에는 차이가 없었으나, 냉동 송이는 A(1등급), B(2등급), C(3등급) 시료에 비하여 D(등외품)시료를 낮게 평가하였다.

• 한국균학회지
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• 제19권4호
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• pp.299-305
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• 1991

Simultaneous distillation-extration method에 의해 4종의 국내에서 인공재배되고 있는 느타리 버섯류 (Pleurotus sp)로부터 휘발성 향기성분을 분리한 다음 GC-MS 및 GC에 의한 표준품과의 머무름 시간 비교에 의해 성분을 확인 하였다. 확인된 54종의 휘발성 화합물중 저온성 느타리 (Pleurotus ostreatus ASI 201)에서는 1-octen-3-ol, 3-octanone, 3-octanol등이, 원형 느타리 (Pleurotus florida--ostreatus-ostreatus)에서는 1-octen-3-ol, n-hexanol, 3-octanone, 3-octanol, phenol등이, 애느타리 (Pleurotus ostreatus)에서는 1-octen-3-ol, n-pentanal, n-hexanol, n-pentanol, 3-octanone, 3-octanol, 1,5-octadien-3-one등이었다. 특히 확인된 성분중에는 탄소수가 8개인 alcohol 및 carbonyl화합물이 많았으며 전체 향기성분에 대한 $C_8$화합물의 비율은 각각 56.60%, 72.46%, 54.84%, 35.85%이었다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2003년도 제10차 국제학술회의 및 추계정기 학술발표회
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• pp.1-1
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• 2003

Poisonous mushrooms have attracted much attention of scientists because of the unique chemical structures and the remarkable biological properties of their toxic components. A wide range of compounds has been characterized as toxic principles, and some of them have widened the horizons of chemical and biological research. Therefore, poisonous mushrooms can serve for a resource of biomedical application. We will describe the recent progress of such aspect of poisonous mushrooms.