Physicochemical components and antioxidant activity of Sparassis crispa mixture fermented by lactic acid bacteria

Abstract

The objective of this study was to investigate the nutritional composition and antioxidant activity of a mixture of rice bran and bodies of Sparassis crispa fermented with lactic acid bacteria (LAB). LAB-fermented S. crispa mixture had higher water, crude lipid and crude ash content than that of S. crispa. Insoluble dietary fiber contents of the dried powder of S. crispa and LAB-fermented S. crispa mixture were 46.13% and 33.46%, respectively. β-glucan was higher in dried S. crispa (38.03%) than in LAB-fermented S. crispa mixture (5.44%). Dried S. crispa contained mainly fructose and glucose instead of containing sucrose in LAB-fermented S. crispa mixture. No significant differences in the total polyphenol contents were found in between dried S. crispa and LAB-fermented S. crispa mixture. Total flavonoid content was significantly higher in LAB-fermented S. crispa mixture than in dried S. crispa. No significant differences were found in the DPPH radical scavenging activity and in the antioxidant index between dried S. crispa and LAB-fermented S. crispa mixture. Finally, ABTS radical scavenging activity of LAB-fermented S. crispa mixture was significantly higher than that of dried S. crispa. These results may provide the basic data for future studies for a better understanding of the biological activities of LAB-fermented S. crispa mixture.

Effects of Sparassis crispa in Medical Therapeutics: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

“…After reviewing these 270 full-text articles on the efficiency of S. crispa extracts for human-disease treatment, thirty-three articles were considered eligible and, therefore, included in the quantitative meta-analysis. One of those articles was written in Japanese [ 21 ], seven in Korean [ 19 , 22 , 23 , 24 , 25 , 26 , 27 ], and the remaining in English. Among them, some studies demonstrated more than two healing effects of the mushroom [ 7 , 26 , 28 , 29 , 30 ].…”

“…Among them, some studies demonstrated more than two healing effects of the mushroom [ 7 , 26 , 28 , 29 , 30 ]. Simultaneously, the anti-diabetic, anti-tumor, anti-inflammatory, anti-fungal, and antioxidant activities of S. crispa were reported in seven [ 6 , 12 , 14 , 28 , 29 , 30 , 31 ], nine-teen [ 7 , 13 , 15 , 21 , 23 , 24 , 26 , 28 , 30 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ], four [ 7 , 22 , 30 , 42 ], three [ 19 , 29 , 43 ], and six [ 8 , 25 , 26 , 27 , 44 , 45 ] studies, respectively.…”

“…According to six studies [ 8 , 25 , 26 , 27 , 44 , 45 ], the antioxidant activity was performed through DPPH (2, 2-diphenyl-1-picrylhydrazyl radical scavenging activity and the oxidative-inhibitory capacity of phenolic compounds derived from S. crispa . In both cases, the S. crispa group reported a higher level of oxidative protection than the control group, with evidence of improving antioxidant activity ( Figure 10 and Figure 11 ).…”