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- 저자 : Renee Lay Hong Lim (검색결과 3 건)
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Studies on the storage stability of fermented red dragon fruit (Hylocereus polyrhizus) drink
Kah Yee Choo,Caryn Kho,Renee Lay Hong Lim,Chun Wai Ho,Yien Yien Ong,Yin Yin Thoo,Chin Ping Tan 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.5
The objective of this work was to study the effect of storage temperatures and duration on the stability of fermented red dragon fruit drink (FRDFD) on its betacyanins content, physicochemical and microbiological qualities (BPM) and determining sensory acceptability. Results showed that both storage temperatures and duration have a significant effect on betacyanins content and physicochemical properties of FRDFD. Aerobic mesophilic and yeast and mold counts were lower than 1 9 103 CFU/ mL for FRDFD stored at both temperatures. The loss of betanin (16.53–13.93 g/L) at 4 C was 15.73% with no significant changes in physicochemical properties from week two onwards compared to 56.32% (16.53–7.22 g/L) of betanin loss at 25 C. At week eight, FRDFD stored at 4 C still contained 13.93 g/L betanin with a pH value of 3.46, suggested its potential as a functional drink which is sensory acceptable (mean score[80% using hedonic test) among consumers.
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Study on bioaccessibility of betacyanins from red dragon fruit (Hylocereus polyrhizus)
Kah Yee Choo,Yien Yien Ong,Renee Lay Hong Lim,Chin Ping Tan,Chun Wai Ho 한국식품과학회 2019 Food Science and Biotechnology Vol.28 No.4
Betacyanins are bioactive dietary phytochemicalswhich can be found in red dragon fruit (RDF). Therefore, the bioaccessibility of betacyanins that presentin fermented red dragon fruit drink (RDFD) and pressedred dragon fruit juice (RDFJ) was accessed in simulatedgastric and intestinal digestion. Results disclosed thatbetacyanins from RDFD and RDFJ suffered minor loss(\25%) at gastric-like environment but greater loss wasobserved during the intestinal phase digestion. After subjectedto intestinal digestion, RDFD retained 46.42% ofbetanin while RDFJ retained 43.76%, with betanin concentrationof 17.12 mM and 12.37 mM, respectively. Findings also revealed that RDFD exhibited higherantioxidant capacity compared to RDFJ after subjected tointestinal digestion, with values of 0.88 mM Troloxequivalent antioxidant capacity (TEAC) and 0.85 mMTEAC, respectively. The data suggests that betacyaninsthat present in RDF are bioaccessible while fermentationable to enhance the bioavailability with more betacyaninsretained after intestinal digestion.
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Fung Shin Yee,Tan Chon Seng,Ng Szu Ting,Tan Nget Hong,Ting Kang Nee,Renee Lim Lay Hong 한국버섯학회 2017 버섯 Vol.21 No.2
Lignosus rhinocerotis, commonly known as Tiger Milk Mushroom, has been long extolled for its medicinal properties and used for treatment of asthma, cough, fever, cancer, liver-related illnesses, joint pains and as tonic. The history of usage for Tiger Milk Mushroom dates back to almost 400 years, ago but there were no records of scientific studies done due to inavailability of sufficient samples. Even when there were samples collected from the wild, the supply and quality was inconsistent. With the advent of cultivation success of one of the most utilized species of Tiger milk mushroom (L. rhinocerotis) in 2009 (known as TM02), scientific investigation was done to validate its traditional use and to investigate its safety for consumption, biochemical and biopharmacological properties. Preclinical toxicology evaluations showed that TM02 did not induce adverse effects on fertility. It also poses neither teratogenic effects nor genotoxicity. The no-observed-adverse-effect level (NOAEL) dose of the TM02 in 180-day chronic toxicity study is 1000 mg/kg which is equivalent to 162 mg/kg human dose, anticipated dose for a 60 kg adult is ~10g. The effective dosage of TM02 is as low as 0.5g per day for an adult. There is therefore, a huge margin for the safe consumption of TM02. TM02 is proven to be effective in supporting the lung and respiratory health, immune health, maintenance of joint health (caused by inflammation), improving vitality and stamina and improving the quality of life for cancer patients. Recent scientific findings have shown that TM02 contains various active components such as the polysaccharides-protein complexes, β-glucans, proteins, immuno-modulatory proteins all of which could play possible roles in rendering significant therapeutic properties such as anti-inflammatory, immuno-modulatory, anti-proliferative, anti-oxidative, neurite outgrowth stimulation etc. The revelation of the genome, transcriptome, proteome of L. rhinocerotis by MMRG has provided valuable insights into the biomolecule discovery and provided the foundation for future research and exploitation of L. rhinocerotis in pharmacological and functional food applications. These data forms a valuable foundation for future research in the exploitation of the L. rhinocerotis in pharmacological and industrial applications.
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