This study investigated the effects of yellow mealworm meal(YM)replacing soybean meal(SBM)at different proportions(0%,15%,30%and 45%,referred as YM0,YM15,YM30 and YM45,respectively)on the flesh quality of Nile tilapia...This study investigated the effects of yellow mealworm meal(YM)replacing soybean meal(SBM)at different proportions(0%,15%,30%and 45%,referred as YM0,YM15,YM30 and YM45,respectively)on the flesh quality of Nile tilapia.A total of 360 fish(70.0±0.12 g)were randomly divided into 4 groups(3 tanks per group).Fish were fed the experimental diet twice daily for 10 wk.The results showed that muscle protein content significantly decreased in YM30 and YM45,while the lipid content significantly decreased in YM45(P<0.05).The essential amino acids and flavor amino acids of the muscle were not affected by the YM substitution,while saturated fatty acid content decreased in YM30 and YM45 compared with YM0(P<0.05).Fillets in YM45 had higher hardness,gumminess,and a higher proportion of thin myofibers(≤100μm,P<0.05)than those in other groups.Further analysis revealed that apoptosis and atrophy related genes were up-regulated,while the muscle antioxidant capacity decreased significantly in YM45(P<0.05),which may be related to the high acid value in YM45 diet.Our findings indicated that YM could replace up to 30%SBM without substantially altering the flesh quality.When the replacement ratio increased to 45%,the flesh quality would change.Special attention should be paid to avoid feed rancidity which may affect the flesh quality of fish.展开更多
This study evaluated the antioxidant and anti-inflammatory capacities of tofu fortified with mealworm (Tenebrio molitor larvae) proteins and their derivatives. The synergistic effects of plant- and animal-based protei...This study evaluated the antioxidant and anti-inflammatory capacities of tofu fortified with mealworm (Tenebrio molitor larvae) proteins and their derivatives. The synergistic effects of plant- and animal-based proteins as well as the advantages of bioactive peptides were evaluated. Tofu was prepared by soy (S), by mixing in a 1:1 ratio of soy and mealworm powder (SM), soy and mealworm protein isolate (SMPI), and soy and mealworm protein hydrolysate (SMPH). SM, SMPI, and SMPH tofu had different proximate compositions, particularly in terms of their protein and lipid contents, compared to S. Mealworm derived tofus had a higher amount of essential, branched-chain, and total amino acids than S. The in vitro ileal digestibility of SMPH (94.10%) was significantly higher than that of S (58.35%), SM (64.64%), and SMPI (73.38%). Moreover, SM, SMPI, and SMPH had higher antioxidant and radical scavenging capacity and total phenolic content than S. Mealworm derived tofu had strong anti-inflammatory effects against lipopolysaccharide (LPS)-induced cytokines, such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6. Conclusively, tofu developed from mealworm and its protein derivatives can potentially be used to fortify traditional tofu;SMPH, in particular, has the most significant potential among all tofu variations in terms of functionality and nutritional value, providing added health benefits.展开更多
The yellow mealworms(Tenebrio molitor L.)were reared by different ratios of tea powder and wheat bran powder mixtures,and weighted every day during the whole 10 days rearing.The content of tea polyphenols,total catech...The yellow mealworms(Tenebrio molitor L.)were reared by different ratios of tea powder and wheat bran powder mixtures,and weighted every day during the whole 10 days rearing.The content of tea polyphenols,total catechins,catechin(C),epicatechins(EC),epigallocatechins(EGC),epicatechin gallates(ECG),epigallocatechin gallates(EGCG),and nutrition components such as protein and fatty acid in the yellow mealworms were determined after 10 days rearing.The yellow mealworms can put on weight and grow well when the proportion of tea powder belows 80%,while 100%tea powder rearing has no signifi cantly reduced the weight of yellow mealworms.The content of tea polyphenols,total catechins,C,EC,EGC,ECG,and EGCG all enhance signifi cantly along with the increase ratio of the tea powder.The protein content increase more signifi cantly at 50%and 80%ratios treatments than the other treatments.Tea powder added rearing reduces the content of saturated fatty acid,and has a complex effect on the content of unsaturated fatty acid.Comprehensive analysis of the components determined show that 50%ratio is the best for yellow mealworm rearing.展开更多
基金This study was supported by the National Key Research and Development Program of China(2019YFD0900200)the National Natural Science Foundation of China(31972798).
文摘This study investigated the effects of yellow mealworm meal(YM)replacing soybean meal(SBM)at different proportions(0%,15%,30%and 45%,referred as YM0,YM15,YM30 and YM45,respectively)on the flesh quality of Nile tilapia.A total of 360 fish(70.0±0.12 g)were randomly divided into 4 groups(3 tanks per group).Fish were fed the experimental diet twice daily for 10 wk.The results showed that muscle protein content significantly decreased in YM30 and YM45,while the lipid content significantly decreased in YM45(P<0.05).The essential amino acids and flavor amino acids of the muscle were not affected by the YM substitution,while saturated fatty acid content decreased in YM30 and YM45 compared with YM0(P<0.05).Fillets in YM45 had higher hardness,gumminess,and a higher proportion of thin myofibers(≤100μm,P<0.05)than those in other groups.Further analysis revealed that apoptosis and atrophy related genes were up-regulated,while the muscle antioxidant capacity decreased significantly in YM45(P<0.05),which may be related to the high acid value in YM45 diet.Our findings indicated that YM could replace up to 30%SBM without substantially altering the flesh quality.When the replacement ratio increased to 45%,the flesh quality would change.Special attention should be paid to avoid feed rancidity which may affect the flesh quality of fish.
基金supported by National Institute of Agricultural Sciences,RDA,Republic of Korea(Project No.PJ015912022022)。
文摘This study evaluated the antioxidant and anti-inflammatory capacities of tofu fortified with mealworm (Tenebrio molitor larvae) proteins and their derivatives. The synergistic effects of plant- and animal-based proteins as well as the advantages of bioactive peptides were evaluated. Tofu was prepared by soy (S), by mixing in a 1:1 ratio of soy and mealworm powder (SM), soy and mealworm protein isolate (SMPI), and soy and mealworm protein hydrolysate (SMPH). SM, SMPI, and SMPH tofu had different proximate compositions, particularly in terms of their protein and lipid contents, compared to S. Mealworm derived tofus had a higher amount of essential, branched-chain, and total amino acids than S. The in vitro ileal digestibility of SMPH (94.10%) was significantly higher than that of S (58.35%), SM (64.64%), and SMPI (73.38%). Moreover, SM, SMPI, and SMPH had higher antioxidant and radical scavenging capacity and total phenolic content than S. Mealworm derived tofu had strong anti-inflammatory effects against lipopolysaccharide (LPS)-induced cytokines, such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6. Conclusively, tofu developed from mealworm and its protein derivatives can potentially be used to fortify traditional tofu;SMPH, in particular, has the most significant potential among all tofu variations in terms of functionality and nutritional value, providing added health benefits.
基金This work was financially supported from the Major Projects of the National New Varieties of Genetically Modified Organisms(2014ZX08010-003,2016ZX08010-003).
文摘The yellow mealworms(Tenebrio molitor L.)were reared by different ratios of tea powder and wheat bran powder mixtures,and weighted every day during the whole 10 days rearing.The content of tea polyphenols,total catechins,catechin(C),epicatechins(EC),epigallocatechins(EGC),epicatechin gallates(ECG),epigallocatechin gallates(EGCG),and nutrition components such as protein and fatty acid in the yellow mealworms were determined after 10 days rearing.The yellow mealworms can put on weight and grow well when the proportion of tea powder belows 80%,while 100%tea powder rearing has no signifi cantly reduced the weight of yellow mealworms.The content of tea polyphenols,total catechins,C,EC,EGC,ECG,and EGCG all enhance signifi cantly along with the increase ratio of the tea powder.The protein content increase more signifi cantly at 50%and 80%ratios treatments than the other treatments.Tea powder added rearing reduces the content of saturated fatty acid,and has a complex effect on the content of unsaturated fatty acid.Comprehensive analysis of the components determined show that 50%ratio is the best for yellow mealworm rearing.
