Association of Official Analytical Chemists (AOAC) 2000. Official methods of analysis, 17th edition. AOAC, Gaithersburg, MD, USA.
Bibi, S, Kang, Y, Yang, G and Zhu, MJ 2016. Grape seed extract improves small intestinal health through suppressing inflammation and regulating alkaline phosphatase in IL-10-deficient mice. Journal of Functional Foods 20, 245–252.
Che, L, Zhan, L, Fang, Z, Lin, Y, Yan, T and Wu, D 2012. Effects of dietary protein sources on growth performance and immune response of weanling pigs. Livestock Science 148, 1–9.
Chu, H, Tang, Q, Huang, H, Hao, W and Wei, X 2016. Grape-seed proanthocyanidins inhibit the lipopolysaccharide-induced inflammatory mediator expression in RAW264.7 macrophages by suppressing MAPK and NF-κb signal pathways. Environmental Toxicology and Pharmacology 41, 159–166.
Dinh, J, Angeloni, JT, Pederson, DB, Wang, X, Cao, M and Dong, Y 2014. Cranberry extract standardized for proanthocyanidins promotes the immune response of Caenorhabditis elegans to Vibrio cholerae through the p38 MAPK pathway and HSF-1. PLoS ONE 9, e103290.
Dong, GZ and Pluske, JR 2007. The low feed intake in newly-weaned pigs: problems and possible solutions. Asian-Australasian Journal of Animal Sciences 20, 440–452.
Goncalves, R, Mateus, N and De Freitas, V 2011a. Influence of carbohydrates on the interaction of procyanidin B3 with trypsin. Journal of Agricultural and Food Chemistry 59, 11794–11802.
Goncalves, R, Mateus, N and De Freitas, V 2011b. Inhibition of α-amylase activity by condensed tannins. Food Chemistry 125, 665–672.
Guil-Guerrero, JL, Ramos, L, Moreno, C, Zúñiga-Paredes, JC, Carlosama-Yépez, M and Ruales, P 2016. Plant-food by-products to improve farm-animal health. Animal Feed Science and Technology 220, 121–135.
Hao, RR, Li, QH, Zhao, JQ, Li, HF, Wang, WW and Gao, JJ 2015. Effects of grape seed procyanidins on growth performance, immune function and antioxidant capacity in weaned piglets. Livestock Science 178, 237–242.
Jakobek, L 2015. Interactions of polyphenols with carbohydrates, lipids and proteins. Food Chemistry 175, 556–567.
Jayaraman, B and Nyachoti, CM 2017. Husbandry practices and gut health outcomes in weaned piglets: a review. Animal Nutrition 3, 205–211.
Kosińska, A and Andlauer, W 2013. Modulation of tight junction integrity by food components. Food Research International 54, 951–960.
Lau, DW and King, AJ 2003. Pre- and post-mortem use of grape seed extract in dark poultry meat to inhibit development of thiobarbituric acid reactive substances. Journal of Agricultural and Food Chemistry 51, 1602–1607.
Li, LL, Yin, FG, Zhang, B, Peng, HZ, Li, FN, Zhu, NS, Hou, DX, Yin, YL, Luo, JJ, Tang, ZR and Liu, G 2011. Dietary supplementation with Atractylodes Macrophala Koidz polysaccharides ameliorate metabolic status and improve immune function in early-weaned pigs. Livestock Science 142, 33–41.
Nabuurs, MJ, Hoogendoorn, A, van der Molen, EJ and van Osta, AL 1993. Villus height and crypt depth in weanead and unweanead pigs, reared under various circumstances in the Netherlands. Research in Veterinary Science 55, 78–84.
National Research Council (N
RC) 2012. Nutrient requirements of swine, 11th revised edition. National Academy Press, Washington, DC, USA.
Obreque-Slier, E, Peña-Neira, Á and López-Solís, R 2012. Interactions of enological tannins with the protein fraction of saliva and astringency perception are affected by pH. LWT-Food Science and Technology 45, 88–93.
Park, JS, Park, MK, Oh, HJ, Woo, YJ, Lim, MA, Lee, JH, Ju, JH, Jung, YO, Lee, ZH, Park, SH, Kim, HY, Cho, ML and Min, JK 2012. Grape-seed proanthocyanidin extract as suppressors of bone destruction in inflammatory autoimmune arthritis. PLoS ONE 7, e51377.
Perez-Gregorio, MR, Mateus, N and de Freitas, V 2014. Rapid screening and identiﬁcation of new soluble tannin-salivary protein aggregates in saliva by mass spectrometry (MALDI-TOF-TOF and FIA-ESI-MS). Langmuir 30, 8528–8537.
Petzke, KJ, Schuppe, S, Rohn, S, Rawel, HM and Kroll, J 2005. Chlorogenic acid moderately decreases the quality of whey proteins in rats. Journal of Agricultural and Food Chemistry 53, 3714–3720.
Rababah, TM, Ereifej, KI, Al-Mahasneh, MA and Al-Rababah, MA 2006. Effect of plant extracts on physicochemical properties of chicken breast meat cooked using conventional electric oven or microwave. Poultry Science 85, 148–154.
Rawel, HM, Czajka, D, Rohn, S and Kroll, J 2002. Interactions of different phenolic acids and flavonoids with soy proteins. International Journal of Biological Macromolecules 30, 137–150.
Shi, J, Yu, J, Pohorly, JE and Kakuda, Y 2003. Polyphenolics in grape seeds-biochemistry and functionality. Journal of Medicinal Food 6, 291–299.
Shishikura, Y, Khokhar, S and Murray, BS 2006. Effects of tea polyphenols on emulsiﬁcation of olive oil in a small intestine model system. Journal of Agricultural and Food Chemistry 54, 1906–1913.
Shpigelman, A, Israeli, G and Livney, YD 2010. Thermally-induced protein-polyphenol co-assemblies: beta lactoglobulin-based nanocomplexes as protective nanovehicles for EGCG. Food Hydrocolloids 24, 735–743.
Song, P, Zhang, R, Wang, X, He, P, Tan, L and Ma, X 2011. Dietary grape-seed procyanidins decreased postweaning diarrhea by modulating intestinal permeability and suppressing oxidative stress in rats. Journal of Agricultural and Food Chemistry 59, 6227–6232.
Stojadinovic, M, Radosavljevic, J, Ognjenovic, J, Vesic, J, Prodic, I, Stanic-Vucinic, D and Cirkovic Velickovic, T 2013. Binding affinity between dietary polyphenols and β-lactoglobulin negatively correlates with the protein susceptibility to digestion and total antioxidant activity of complexes formed. Food Chemistry 136, 1263–1271.
Sugiyama, H, Akazome, Y, Shoji, T, Yamaguchi, A, Yasue, M, Kanda, T and Ohtake, Y 2007. Oligomeric procyanidins in apple polyphenol are main active components for inhibition of pancreatic lipase and triglyceride absorption. Journal of Agricultural and Food Chemistry 55, 4604–4609.
Terra, X, Pallarés, V, Ardèvol, A, Bladé, C, Fernández-Larrea, J, Pujadas, G, Salvadó, J, Arola, L and Blay, M 2011. Modulatory effect of grape-seed procyanidins on local and systemic inflammation in diet-induced obesity rats. The Journal of Nutritional Biochemistry 22, 380–387.
Tomás-Barberán, FA and Andrés-Lacueva, C 2012. Polyphenols and health: current state and progress. Journal of Agricultural and Food Chemistry 60, 8773–8775.
Uchiyama, S, Taniguchi, Y, Saka, A, Yoshida, A and Yajima, H 2011. Prevention of diet-induced obesity by dietary black tea polyphenols extract in vitro and in vivo. Nutrition 27, 287–292.
Wijtten, PJ, van der Meulen, J and Verstegen, MW 2011. Intestinal barrier function and absorption in pigs after weaning: a review. British Journal of Nutrition 105, 967–981.
Yang, G, Xue, Y, Zhang, H, Du, M and Zhu, MJ 2015. Favourable effects of grape seed extract on intestinal epithelial differentiation and barrier function in IL10-deficient mice. The British Journal of Nutrition 114, 15–23.
Yuksel, Z, Avci, E and Erdem, YK 2010. Characterization of binding interactions between green tea ﬂavanoids and milk proteins. Food Chemistry 121, 450–456.