Tea Powder Research Articles

Rheological, textural, and functional characteristics of 3D-printed cheesecake containing guava leaf, green tea, and barley sprout powders

The use of 3D food printing as an alternative to manufacturing customized food is gaining popularity. In this study, functional powders of guava leaf (GL), green tea (GT), and barley sprouts (BS) were tested as edible ink ingredients for printing cheesecake, and their physicochemical and functional properties were evaluated. Particle size and water and oil holding capacities were highest in GL powder, whereas the water-soluble index was highest in BS. In functional powder-added cheesecake, pseudoplastic and shear-thinning behavior was observed which is ideal for 3D printing. The shear modulus (1.87 kPa) of the control cheesecake (without functional powder) was significantly increased to 5 kPa or higher by adding functional powder. The in vitro glycemic index was lowest in GL cheesecake, whereas antioxidant activity and polyphenol content were highest in GT cheesecake. GL and GT powders would be beneficial as an edible ink to improve functional properties, such as antioxidant activity for GT and blood-glucose-lowering effect for BS, with enhanced printability and textural stability of 3D printed cheesecake.

Green tea powder inclusion promoted hatchability through increased yolk antioxidant activity

Dietary supplementation of green tea powder (GTP) changes egg quality of hens, however, whether these changes affect incubation is still unknown. This study was to compare the proteomic difference of incubated eggs from hens with GTP supplemented or not. Huainan partridge chickens (1,080) at 35 wk of age were allocated into 2 groups, one group fed basal diet (CG) and one group fed basal diet plus 1% GTP (EG). After 4 wk feeding, artificially fertilized eggs were collected for yolk cholesterol determination and incubation. During incubation, 6 embryos from each group were randomly selected in each day for yolk protein extraction and quantification. Yolk cholesterol content was significantly lower, while the hatchability was significantly higher in EG than that of the CG group (P < 0.05). Yolk protein concentration at embryonic days (ED) of 0, 2, 6, and 13 showed significant changes and were selected for proteomic analysis by 2-dimensional gel electrophoresis combined with liquid chromatography-tandem mass spectrometry. Fifty-one differentially expressed (DE) protein spots were identified among different incubation stages between CG and EG group which were mainly classified into vitellogenin, immunoglobulin, and ovoinhibitor, and occupied 45.1, 23.5, and 15.7%, respectively, to the total DE proteins. Ovotransferrin, participated in extracellular sequestering of iron ion process, was significantly lower in EG group than that of the CG group (P < 0.05). Ig light chain precursor (Immunoglobulin) exhibited higher expression at ED6 in EG group as compared with that of the CG group, and was participated in immune response related processes. Ovoinhibitor, mainly involved in protease binding activity, showed lower abundance at ED13 in EG group as compared with that of the CG group. Vitellogenin-3, showed lower expression in EG group as compared with that of the CG group, was mainly participated in lipid transportation and localization according to GO enrichment. Chickens fed diet with GTP provided eggs more antioxidant ability that increased hatchability, indicated that GTP could be considered as additive in breeding layer.

REPRODUCTIVE, SERUM BIOCHEMICAL AND HORMONAL TRAITS OF LOCAL QUAIL IN RESPONSE TO DIETARY SUPPLEMENTATION OF GREEN TEA POWDER

This study was conducted on 90 local quail females in six different treatments in order to know the effect of adding green tea powder to the quail diet on the productive, reproductive, biochemical and hormonal characteristics of quail females. The results showed a significant superiority of the birds of the group fed on 1% of green tea powder in hot and cold carcass weight, average egg weight, albumin weight, yolk height and color, and the lowest feed consumption, while the control-treated birds in the number of eggs produced, HDP, ALT, Alkaline and Bilirubin exceeded the other treatments birds. Concerning the lipid profile, blood urea ratio, and AST, the highest significant figures were recorded in the treatment of birds fed a ration to which 3% lipids were added. In contrast, the lowest values ​​for total cholesterol, Tri, VLDL, and blood nitrogen were recorded for birds of the treatment fed at 2% of green tea powder. The results showed that there were significant differences between the six treatment birds in the level of blood hormones, as the highest level of (estrogen), (Ghrelin, leptin, FSH), (T4) and (Growth and LH) were recorded for the control birds, 3% lipid and 1% dried green tea and 2% green tea with 3% lipid, respectively. We conclude from the above that birds fed a supplemented diet of 1% green tea powder were superior in most productive and reproductive traits, especially carcass weight, dressed %, egg weight and internal egg characteristics, compared to other treated birds.

Investigating particle-size-induced changes in composition, physical, rheological, and bioactive properties of black tea powder.

People brew tea to drink an infusion that only contains 25% water-soluble constituents, leading to most of the insoluble materials being wasted. Tea powder could be drunk directly by mixing with water without producing any waste. Tea powder can also be used as a natural additive to improve the flavour and taste in beverages and foods. Much detailed information on the particle properties of tea powder is required with its increasing consumption. The aim of this study was to investigate the effects of particle size ranging from median diameter D50 =4.32 to 26.59 μm on the composition, physical, rheological, and bioactive properties of black tea powder. The results indicate that large powder sizes had high bulk density and flowability, whereas small powder sizes possessed good swelling ability and wettability. The contents of water extract, total polyphenols, crude fibre, catechins, and thearubigins reduced with a decrease in particle size. To change the particle size and concentration could adjust the elastic modulus and the viscous modulus of the black tea powder suspension. Moreover, black tea powder with small particle size could regulate blood lipids in a hyperlipidaemic rat model by lowering triacylglycerols and elevating high-density lipoprotein cholesterol, whereas large particles presented an advantage in reducing body weight. Our investigation extended the knowledge of commercial black tea powder in composition, physical, rheological, and bioactive properties. These results lay the foundation for future exploration of the use of tea powder in the food industry. © 2022 Society of Chemical Industry.

Effects of β-Carotin and Green Tea Powder Diets on Alleviating the Symptoms of Gouty Arthritis and Improving Gut Microbiota in C57BL/6 Mice.

As a chronic metabolic disease caused by disorders of purine metabolism, gout has shown increasing incidence rate worldwide. Considering that gout is not easily treated and cured, further studies are explored to prevent gout development through diet modification. Both β-carotin and green tea powder are rich in dietary fiber, which helps maintain the balance of gut microbiota in humans. The aim of this study was to investigate the effects of β-carotin and green tea powder diet on the prevention of gouty arthritis in relation to the bacterial structure of gut microbiota in mice. We successfully induced gouty arthritis in C57BL/6 mice by injecting monosodium urate (MSU) crystals and feeding high-fat diet (HFD), and further investigated the effects of additional β-carotin and green tea powder in the diets of mice on the prevention of gouty arthritis in mice. Our results showed that diet of β-carotin and green tea powder reduced the joint swelling and pain in mice with gout, reduced the levels of serum uric acid (UA) and three types of pro-inflammatory cytokines, i.e., interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α), improved the gut microbiota profile, and reduced the metabolic levels of purines and pyrimidines. In conclusion, our study provided evidence to support the application of β-carotin and green tea powder diet as a dietary adjustment method to prevent and treat gouty arthritis.

Investigation of carbonate addition on risk element concentrations in various teas.

Healthy nutrition requires to notice risk element content of daily ingested foods and beverages. Several tea types are frequently consumed beverages in daily routine and social situations. Carbonate, although it is not in the natural ingredients of tea, can be added to maintain more brew. Also it gives brilliant red colour while reducing the brewing cost. For this respect, in this study, carbonate added infusions of some black teas (black, earl grey and green tea), herbal teas (fennel, mint and sage tea) and fruit teas (apple, lemon and rosehip) was investigated by inductively coupled plasma optical emission spectrometer (ICP-OES) for the determination of carbonate addition to the risk element (Al, As, Ba, Cd, Mo, Pb, Sb and Ti) contents of teas. Also, the microwave digestion analysis applied by dissolving tea powders in acid solution was conducted in order to investigate how much risk element transfer to the brew. Prior to microwave digestion process, the total risk element contents of the tea grains were determined by again ICP-OES. Furthermore, health risk assessment studies including non-carcinogenic and carcinogenic risks were conducted. According to the health risk assessment results of 200mL daily consumed teas, hazard index (HI) was found less than 1 and target carcinogenic risk (TCR) was determined as less than 1 × 10-4 which shows all selected tea samples are in the low risk group.

The effect of mangrove types and leave maturity on the mangrove leaves (Sonneratia alba) and (Rhizophora mucronata) tea powder

Mangrove leaves are green plants that have high antioxidant potential and bioactive compounds such as flavonoids, alkaloids/tannins, phenols, catechins, saponins, triterpenoids, and many other compounds. The growing’s place and environment, mangrove leaf species, and mangrove leaf age. Based on the many properties of the two types of mangroves, mangrove leaves have the potential to be used as raw materials for making alternative drinks such as tea. The research method used is an experimental design with a completely randomized design (CRD) with a factorial pattern with 2 factors (Rhizophora sp. leaves & extracts). Sonneratia sp.) and 2 test levels (old and young leaves). The results showed that mangrove leaf tea has the potential to be used as an alternative drink with high antioxidant activity (strong-very strong) with an IC50 value in the range of 49.76-50.12 with the highest antioxidant activity value obtained by leaves. Rhizophora mucronata (RM2) tea with old leaves as raw material.

Defluoridation by Activated Carbon form of Used Tea Powder

Defluoridation by Activated Carbon form of Used Tea Powder

A sustainable approach for processing organic waste in India

There are about 3430 million poultry populations in India, with a waste generation of 3.30 million tons per year. India is the world's third-largest egg producer and the fourth-largest broiler chicken producer, and Tamil Nadu plays a significant role in poultry egg and meat production. As the poultry hub of Tamil Nadu, Namakkal has been struggling to manage these wastes dumped in open areas by the poultry farms and small industrial units in recent years. The dumping of Bio-organic waste like chicken feathers and chicken intestines in the municipal solid waste landfill creates an unpleasant odor, environmental contamination, and various health issues. These organic wastes can be recycled through composting as a sustainable approach to waste management. In this study, discarded chicken waste from the poultry units and slaughterhouses in and around the Namakkal was collected and mixed with other organic manure like cow dung, rice husk, and tea powder in various proportions to generate organic compost. The composting process has been carried out in-vessel composters for 40 days by both aerobic and anaerobic methods at the lab scale. The parameters such as C: N ratio, pH, Organic matter, Dry matter, Moisture content, and NPKvalues are analyzed for aerobic and anaerobic processes. It is found that the C: N ratio is optimum in aerobic compost compared to anaerobic compost. Also, it is observed that the aerobic compost had a positive influence on the plant growth, i.e., okra (ladies finger) seedlings, then the anaerobic compost. The study indicates that the addition of external agents is required for the complete and rapid degradation of chicken feathers due to fiber-rich keratin. Thus, the present study will effectively reduce the potential hazards of chicken waste disposal through the proposed sustainable approach.

Characterization and antibacterial behavior of an edible konjac glucomannan/soluble black tea powder hybrid film with ultraviolet absorption.

In this study, a KGM/SBTP film was prepared by a blending method using KGM and a soluble black tea film (SBTP) as substrates, and its hygroscopicity, thermal properties, light barrier properties, microstructure, and bacteriostatic properties were evaluated. The results confirmed that compared with the control group, with the increase in the SBTP content, the transmittance of the film in the ultraviolet region significantly reduced, and the water barrier property and thermal stability were improved. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) results indicated that the tea polyphenols interacted with the film substrate. SEM also showed that the structure of the KGM/SBTP films was smooth and flat, and all samples showed no fracture. In addition, the KGM/SBTP mixed membrane had obvious concentration-dependent antibacterial activity. When the concentration of SBTP was 0.9%, the inhibition zones against Staphylococcus aureus and Escherichia coli were 12.30 ± 0.20 mm and 12.05 ± 0.47 mm, respectively.

Optimization and Extension of Shelf-Life of Chapati Using Selected Natural Plant Extracts as Preservatives

Whole wheat flour is employed to prepare an unleavened flat-baked chapati product. The majority of people in Asian communities residing all over the world and the Indian subcontinent consume chapati as a traditional staple food. There is an increase in demand for ready-to-eat chapatis due to changes in lifestyle, so this study was initiated to increase the shelf-life of chapatis using selected plant samples through optimization. The optimized dough was seen to have a good leavening and soft texture with no change in their appearance, order, or taste. The spoilage of the prepared and stored chapattis was monitored. At the conclusion of the 20 trials, the range of shelf-life obtained was between 14 to 16 days. On studying the goodness of fit statistics in the model used for the optimization based on the low s value (0.3717), there is a better description of the response. 97.94% R2 value was obtained with consideration of the response describing the fitness of the model. Similarly, its right and it determines adjacent R2 value, and predicted R2 value was not substantially less than the R2 value making the model fit. On encoding the values 0.6625 for turmeric, 0.6625 for the sweet flag, and 0.7305 for tea powders can be used to obtain the maximized shelf-life of 16 days.

Total polyphenols and antioxidant activities of green tea powder from GMB 7 and GMB 9 tea clones

People’s interest in green tea powder is increasing currently. The addition of green tea powder to food products could increase antioxidant activity and other health benefits. GMB 7 and GMB 9 are local tea clones of the Assam variety widely planted in Indonesia’s tea plantation. This study aimed to determine green tea powder’s total polyphenols and antioxidant activity from local tea clones (GMB 7 and GMB 9). Total polyphenol and antioxidant activity were determined by Folin-Ciocalteau and free radical of DPPH methods, respectively. Our results showed that the total polyphenols of green tea powder were 27.61% and 27.31% for the GMB 7 and GMB 9 clones, respectively. Furthermore, the antioxidant activity of green tea powder with IC50 was 15.41 mg/L and 17.32 mg/L for clones GMB 7 and GMB 9, respectively. The results indicate the potential for the development and utilization of local clones to fulfill domestic green tea powder production. Further research is needed to determine the health benefits of green tea powder from clones of The Assam varieties.

Applicability of convection drying process for production of instant tea powder from Condonopsis javanica root extract

The present research was conducted to apply Condonopsis javanica root extract for the production process of instant tea by using the convection drying technology. The characters of the obtained-powder were affected by some factors including maltodextrin concentrations of 30%, 40%, 50% and 60% (w/w), extract concentrations of 5%, 10%, 15% and 20% (w/w), drying time of 15 h, 20 h and 25 h and drying temperatures of 60 °C, 70 °C and 80 °C. The appropriate results showed that the parameters were 40% maltodextrin, 10% extract and drying conditions at 70 °C for 15 h. As a result, the physiochemical properties of instant tea products were analyzed for moisture content (%), total phenolic content (mg GAE/g of the sample), and solubility (%) which have achieved values of 2.463, 0.537 and 97.12, respectively. The final product was good with a score 15.32 of a maximum 20 points according to TCVN 3215-79. The production of Condonopsis javanica instant tea by using the convection drying method/technology could give a healthy product and bring a high potential application in the beverage industry in the future.

ADDITION OF MILK ENHANCED THE TOTAL PHENOLIC CONTENT AND ANTIOXIDANT ACTIVITY OF Camellia sinensis (GREEN TEA) BEVERAGES

The study was aimed to determine the effects of adding milk, sugar and sweeteners to the total phenolic content and antioxidant activity of Camellia Sinensis (green tea) powder. Six green tea samples were brewed in cold water and whisked: Green tea powder (G), green tea powder with sugar (GS), green tea powder with aspartame (GA), green tea powder with milk (GM), green tea powder with milk and sugar (GMS) and green tea powder with milk and aspartame (GMA). The total phenolic content of green tea powder samples was evaluated by using Folin-Ciocalteu assay while α,α-diphenyl-2-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays were used to measure the antioxidant activity. Results showed that milk addition significantly enhanced by 59.84% of total phenolic content and also increased 26.3% (DPPH) and 42.35% (FRAP) of antioxidant activity of green tea powder, as compared to green tea samples without milk (p&lt;0.05). Strong and positive correlations were found between the total phenolic content and antioxidant activity of green tea powder by using DPPH (r=0.990) and FRAP assays (r=0.997). In conclusion, it might be beneficial when milk is added to green tea as it could help to increase its antioxidant properties.

Effect of processing and preservation on L-ascorbic acid content in commercially cultivated jute leaves

Vitamin C, also known as ascorbic acid is essential nutrients that cannot produce in human body and meet up through diet. Jute leaves contain L-ascorbic acid. The amount of L-ascorbic is unknown in different varieties developed by Bangladesh Jute Research Institute. L-ascorbic acid content is affected by cooking or processing and preservation. Therefore, the experiment was conducted to investigate the content of vitamin C in the fresh jute leaves as well as the effect of cooking and preservation methods on L-ascorbic acid content in jute leaves. Fresh jute leaves of different varieties contain different amount of L-ascorbic acid 0.39g/10g to 0.64g/10g in Corchorus olitorius and 0.64g/10g to 0.92g/10g in Corchorus capsularis. C. capsularis contain more amount of L-ascorbic acid than the C. olitorius. Jute leaves of C. olitorius retain 95% L-ascorbic acid and C. capsularis retain 62% L-ascorbic acid after 15 min of boiling. Vinegar soaking leaves release more L- ascorbic acid by 5 min than the fresh leaves and then the L-ascorbic acid content was reduced by 15 min in both the species. Spraying vinegar treatment releases more L-ascorbic acid and increasing up-to 30 min treatment. Both oven dried and cold dried leaves retain small amount of L-ascorbic acid. L-ascorbic acid content was reduced in preserved jute leaf tea and soup powder also in both species. Usually, leafy vegetables are cooked before consumption and sometimes preserved vegetables are consumed when fresh vegetables may not available. So, this study may be useful to know the actual intake of L-ascorbic acid from the processed or preserved jute leaves.

Anticariogenic Activity of Copper Nanoparticles Synthesized Using Blue Tea

Background: Nanotechnology is rapidly growing in various fields of science like medicinal, agricultural and physical and material sciences. Copper nanoparticles are particularly attractive because of copper’s high natural abundance and low cost and the practical and straightforward multiple ways of preparing copper based nanomaterials.&#x0D; Aim: To assess the anticariogenic activity of copper nanoparticles synthesized using blue tea.&#x0D; Materials and Methods: The blue tea powder was acquired. An aqueous extract was prepared and mixed with copper sulphate for copper nanoparticles formation and centrifuged for 10 minutes. The extract was then placed in the well cultured agar plates against C. albicans, S. mutans, S. aureus and E. faecalis and incubated for 24 hours. The zones of inhibition were then calculated.&#x0D; Results: Against S. aureus, 25μl showed 10 mm of zone of inhibition, 50μl showed 10 mm of zone of inhibition and 100μl showed 12 mm of zone of inhibition. 21 mm of zone of inhibition were noted against the antibiotic. Against C. albicans, 25 μl showed 25 mm of zone of inhibition, 50 μl showed 26 mm of zone of inhibition and 100 μl showed 30 mm of zone of inhibition. 12 mm of zone of inhibition were noted against the antibiotic. Against S. mutans, 25 μl showed 10 mm of zone of inhibition, 50 μl showed 10 mm of zone of inhibition and 100 μl showed 25 mm of zone of inhibition. 21 mm of zone of inhibition were noted against the antibiotic. Against E. faecalis, 25 μl showed 10 mm of zone of inhibition, 50 μl showed 13 mm of zone of inhibition and 100 μl showed 14 mm of zone of inhibition. 37 mm of zone of inhibition were noted against the antibiotic.&#x0D; Conclusion: The blue tea mediated copper nanoparticles showed anticariogenic activity against S. mutans, C. albicans, E. faecalis and S. aureus and therefore can be used for clinical application.

Anticariogenic Activity of Copper Nanoparticles Synthesized Using Red Tea: An In vitro Study

Background: Nanotechnology is rapidly growing in various fields of science like medicinal, agricultural and physical and material sciences. Copper nanoparticles are particularly attractive because of copper’s high natural abundance and low cost and the practical and straightforward multiple ways of preparing copper based nanomaterials.&#x0D; Aim: To assess the anticariogenic activity of copper nanoparticles synthesized using red tea.&#x0D; Materials and Methods: The red tea powder was acquired. An aqueous extract was prepared and mixed with copper sulphate for copper nanoparticles formation and centrifuged for 10 minutes. The extract was then placed in the well cultured agar plates against Candida albicans, Streptococcus mutans, S. aureus and E. faecalis and incubated for 24 hours. The zones of inhibition were then calculated.&#x0D; Results: Against S. aureus, 50 μl showed 20 mm of zone of inhibition, 100 μl showed 16 mm of zone of inhibition and 150 μl showed 20 mm of zone of inhibition. 19 mm of zone of inhibition were noted against the antibiotic. Against C. albicans, 50 μl showed 12 mm of zone of inhibition, 100 μl showed 13 mm of zone of inhibition and 150 μl showed 12 mm of zone of inhibition. 10 mm of zone of inhibition were noted against the antibiotic. Against S. mutans, 50 μl showed 17 mm of zone of inhibition, 100 μl showed 14 mm of zone of inhibition and 150 μl showed 19 mm of zone of inhibition. 35 mm of zone of inhibition were noted against the antibiotic. Against E. faecalis, 50 μl showed 12 mm of zone of inhibition, 100 μl showed 15 mm of zone of inhibition and 150 μl showed 19 mm of zone of inhibition. 35 mm of zone of inhibition were noted against the antibiotic.&#x0D; Conclusion: The anticariogenic activity of copper nanoparticles synthesized using red tea were studied and their wider zones of inhibition were suggestive of good anticariogenic activity. We conclude that copper nanoparticles synthesized using red tea can be used against S. aureus, S. mutans, C. albicans and E. faecalis as an anticariogenic agent.

The Effect of Capsule-in-Capsule Combinations on In Vivo Disintegration in Human Volunteers: A Combined Imaging and Salivary Tracer Study.

Controlling the time point and site of the release of active ingredients within the gastrointestinal tract after administration of oral delivery systems is still a challenge. In this study, the effect of the combination of small capsules (size 3) and large capsules (size 00) on the disintegration site and time was investigated using magnetic resonance imaging (MRI) in combination with a salivary tracer technique. As capsule shells, Vcaps® HPMC capsules, Vcaps® Plus HPMC capsules, gelatin and DRcaps® designed release capsules were used. The three HPMC-based capsules (Vcaps®, Vcaps® Plus and DRcaps® capsules) were tested as single capsules; furthermore, seven DUOCAP® capsule-in-capsule combinations were tested in a 10-way crossover open-label study in six healthy volunteers. The capsules contained iron oxide and hibiscus tea powder as tracers for visualization in MRI, and two different caffeine species (natural caffeine and 13C3) to follow caffeine release and absorption as measured by salivary levels. Results showed that the timing and location of disintegration in the gastrointestinal tract can be measured and differed when using different combinations of capsule shells. Increased variability among the six subjects was observed in most of the capsule combinations. The lowest variability in gastrointestinal localization of disintegration was observed for the DUOCAP® capsule-in-capsule configuration using a DRcaps® designed release capsule within a DRcaps® designed release outer capsule. In this combination, the inner DRcaps® designed release capsule always opened reliably after reaching the ileum. Thus, this combination enables targeted delivery to the distal small intestine. Among the single capsules tested, Vcaps® Plus HPMC capsules showed the fastest and most consistent disintegration.

Characterization of a Novel Mitovirus Infecting Melanconiella theae Isolated From Tea Plants.

A dsRNA segment was identified in the fungus Melanconiella theae isolated from tea plants. The complete dsRNA sequence, determined by random cloning together with RACE protocol, is 2,461 bp in length with an AU-rich content (62.37%) and comprises a single ORF of 2,265-nucleotides encoding an RNA-dependent RNA-polymerase (RdRp, 754 amino acids in size). The terminus sequences can fold into predicted stable stem-loop structures. A BLASTX and phylogenetic analysis revealed the dsRNA genome shows similarities with the RdRp sequences of mitoviruses, with the highest identity of 48% with those of grapevine-associated mitovirus 20 and Colletotrichum fructicola mitovirus 1. Our results reveal a novel member, tentatively named Melanconiella theae mitovirus 1 (MtMV1), belongs to the family Mitoviridae. MtMV1 is capsidless as examined by transmission electron microscope, efficiently transmitted through conidia as 100 conidium-generated colonies were analyzed, and easily eliminated by hyphal tipping method combined with green-leaf tea powder. MtMV1 has a genomic sequence obviously divergent from those of most members in the family Mitoviridae and some unique characteristics unreported in known members. This is the first report of a mycovirus infecting Melanconiella fungi to date.

Effects of Dietary Tea Powder on the Growth Performance, Carcass Traits, and Meat Quality of Tibetan Pig × Bama Miniature Pigs.

Simple SummaryIn China, and even the world, the animal husbandry industry is facing the problem of a shortage of feed ingredients, and even humans and animals compete for food. The development of unconventional feed resources is an urgent task. In our previous work, we analyzed the nutritional value of tea powder and believed that it has development potential. This study investigated the effects of supplementing different levels of tea powder in diets on pig growth performance, meat quality, and antioxidant properties. These results provide a preliminary basis for the application of tea powder as a supplement in animal husbandry.This study was conducted to evaluate the effects of tea powder in diets on the growth performance, meat quality, muscular amino acid, fatty acid profile, and serum biochemical indices of pigs. A total of 120 local Chinese pigs (Tibetan × Bama miniature pigs) were randomly assigned to five treatment groups, each with six pens and four pigs per pen. During a 60-day experiment, these groups of pigs were fed the normal diet and the diet supplemented with 1%, 2%, 4%, and 6% tea powder, respectively. The results showed that the supplementation of tea powder did not affect the growth performance of pigs. However, the dietary tea powder inclusion decreased (p < 0.05) the average fat thickness, total fat, and abdominal fat, and increased (p < 0.05) the total muscle as well. In addition, the dietary 2% tea powder decreased (p < 0.05) the muscle lightness (L*) and yellowness (b*). Compared with the control group, the dietary supplementation with 1%, 2%, and 4% tea powder raised (p < 0.05) the total amino acids (TAA) and essential amino acids (EAA), and dietary 4% and 6% tea powder increased (p < 0.05) the C20:5n3 in the muscle tissue. Furthermore, the serum lipid metabolism-related biochemical indices and mRNA expression levels were improved with the addition of tea powder. These results indicated that dietary tea powder might improve the carcass traits and meat quality of the Chinese native finishing pigs, but it does not affect their growth performance. Tea powder could be fully developed and reasonably applied as a dietary supplement.