Development of a New Method for Preparation and Conservation of Tea Grounds Silage

Masuda, Nobuyoshi; Fujita, Yasuhito; Kawamoto, Hidenori; Ando, Sadami

doi:10.2508/chikusan.72.10_536

Cited by 5 publications

(14 citation statements)

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“…Whereas, tea grounds usually contain about 10 6 aerobic bacteria, 10 3 to 10 4 mold and yeast in colony forming units/g of fresh matter, whereas lactic acid bacteria (LAB) could not be detected. Besides, water-soluble carbohydrates (WSC) are consistently at or below the detectable level [9,12]. Thereby, lactic acid fermentation scarcely occurs when untreated tea grounds are ensiled alone.…”

Section: Introductionmentioning

confidence: 99%

Utilization of tea grounds as feedstuff for ruminant

Wang

2013

J Animal Sci Biotechnol

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Researches on tea have been developed for decades, which prove that tea, especially green tea, has multiple functional components. With the rapid development of beverage industry, the resultant large amounts of tea grounds attract great attention. However, unreasonable utilization of tea grounds would lead to great waste and environmental pollution, especially in summer. In view of the high nutritive value and multiple functional components, tea grounds could be used as feedstuff. By now, researches of tea grounds as feedstuff are mainly on ruminant, as the utilization on other animals is limited to lower level due to high fiber content. Therefore, the following review will begin with a brief introduction of tea grounds and the possible utilization of tea grounds as feedstuff, and then elaborate on the application of ensiling and total mixed ration on ruminant. Apart from the fermentation quality, nutritive value is also provided to assess feasibilities of using tea grounds as feedstuff resources. Finally, a summary on the utilization situation and future direction of using tea grounds as feedstuff is provided in this review.

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Section: Introductionmentioning

confidence: 99%

Utilization of tea grounds as feedstuff for ruminant

Wang

2013

J Animal Sci Biotechnol

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“…Ensiling is preferred owing to its high moisture content (approximately 800 g kg −1 ), but controversies exist in the evaluation of fermentation characteristics. Kondo et al 2 determined high (>10 8 cfu g −1 ) numbers of lactic acid bacteria (LAB), while Cai et al 3 did not find any LAB (<10 2 cfu g −1 ) in ensiling materials. Soluble sugars are less than required owing to extraction by hot water; thereby lactic acid fermentation scarcely occurred when untreated GTW was ensiled alone 3, 4.…”

Section: Introductionmentioning

confidence: 99%

“…Kondo et al 2 determined high (>10 8 cfu g −1 ) numbers of lactic acid bacteria (LAB), while Cai et al 3 did not find any LAB (<10 2 cfu g −1 ) in ensiling materials. Soluble sugars are less than required owing to extraction by hot water; thereby lactic acid fermentation scarcely occurred when untreated GTW was ensiled alone 3, 4. Interestingly, addition of wet GTW can enhance lactic acid production of grass silages,5, 6 while factors accounting for the improvement have not been fully understood.…”

Section: Introductionmentioning

confidence: 99%

Changes during ensilage in fermentation products, tea catechins, antioxidative activity and in vitro gas production of green tea waste stored with or without dried beet pulp

2007

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Wet green tea waste (GTW) was ensiled in laboratory silos with or without dried beet pulp at a ratio of 2:1 on a fresh weight basis. The silos were opened at 15, 30 and 60 days after anaerobic storage; fermentation products, tea catechins, antioxidative activity and in vitro gas production were determined. Acetic acid prevailed over the fermentation and the pH declined to below 4.2 when wet GTW was ensiled alone. Addition of dried beet pulp greatly enhanced lactic acid production and the pH further decreased to below 3.8 with no butyric acid being detected. Approximately 90% and 80% of (−)-epicatechin gallate and (−)-epigallocatechin gallate, respectively, were degraded in silage prepared from wet GTW alone, while the degradation was ameliorated in mixed silage to about 55% and 70%, respectively. Antioxidative activity was not markedly altered by ensiling and 70-80% of the initial activity was detected after 60 days. Changes were small in (−)-epigallocatechin, caffeine and total phenols with or without mixing with dried beet pulp. In vitro gas production was similar between materials and their silages, indicating that reduction of tea catechins would not elicit an improvement in digestibility. It is concluded that wet GTW can be ensiled successfully without bacterial inoculants when mixed with other materials containing certain sugars. Ensiling may degrade part of the components of tea catechins, while not affecting total phenols, antioxidative activity and digestibility of wet GTW.

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“…Like green tea, green tea waste also contains phenolic compounds (Cai et al, 2001;Tsubaki et al, 2008Tsubaki et al, , 2010An et al, 2011;Toh et al, 2010), while the content of phenolic compound would be much In the present study muscle crude protein and crude lipid were not different among groups, which were consistent with previous findings where no changes in body composition, whole-body lipid concentration or muscle lipid concentration were observed in rainbow trout fed on EGCG (epigallocatechin-3-gallate, Thawonsuwan et al, 2010) or in juvenile olive flounder fed on various sources of green tea (Cho et al, 2007).…”

Section: Effect Of Gtw On Growth and Feed Efficiency Ratio Of Grass Carpmentioning

confidence: 99%

“…In the commercial industry the green tea waste and byproducts that remain after processing still contain large amounts of protein (20-80 % CP), carbohydrates and phenolic compounds (Cai et al,, 2001;Tsubaki et al,, 2008Tsubaki et al,, , 2010An et al,, 2011;Toh et al,, 2010 …”

Section: Introductionmentioning

confidence: 99%

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Zhou¹,

Lin²,

Ji³

et al. 2016

Turk. J. Fish. Aquat. Sci.

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To investigate the effects of green tea waste on growth and health of grass carp (Ctenopharyngodon idellus), Green tea waste (GTW) and green tea (GT) were added in the basal diet (BD) of fish by replacing wheat at an inclusion level of 5% to form three diets. 60 grass carp (43.8±2.8 g) were divided into three groups (each group having two replicates) and fed for 66 days. After which growth and health of fish were determined. The results showed that final weight of fish and feed efficiency ratio in GTW group were between BD and GT groups and they were not different compared with BD or with GT groups. Expression of muscle myf5 and myf6 in GTW were between BD and GT group, being significantly lower than BD group. Serum TP, ALB, GLO, HDL, LDL and T-AOC in GTW group were significantly higher than BD group. Expression of hsp 70 and ubiquitin in hepatopancreas of fish in GTW group were significantly higher than BD group. The results suggest that GTW supplementation has positive impact on health of fish without affecting the growth of fish.

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Development of a New Method for Preparation and Conservation of Tea Grounds Silage

Cited by 5 publications

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Utilization of tea grounds as feedstuff for ruminant

Utilization of tea grounds as feedstuff for ruminant

Changes during ensilage in fermentation products, tea catechins, antioxidative activity and in vitro gas production of green tea waste stored with or without dried beet pulp

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