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Table 4 The inclusion of plant extracts or oils rich in miscellaneous polyphenols and lipid oxidation in lamb meat

From: Insights into the role of major bioactive dietary nutrients in lamb meat quality: a review

Lamb type1

Supplement presentation

Feed supplement

Main attributed active molecules

Dietary inclusion level

TBARS differences compared with control2

Ref.

Suckling

Plant extract

Orange (Citrus × sinensis) and lemon (Citrus × limon) extract

Cyanidin 3-glucoside

Cyanidin 3-(6-malonyl) glucoside

Peonidin 3-(6-malonyl) glucoside

90 mg/kg of body-weight (mixed with water)

↓ (7-day refrigerated storage)

[100]

Light

Plant by-product

Red wine (Vitis vinifera) extract

Flavonoids

Hydroxybenzoic and hydroxycinnamic acids

Stilbenes (resveratrol)

900 mg/kg feed

NS (stored in MAP (70% O2/30% CO2) over 12 d at 4 °C)

[101]

Light

Plant by-product

Pomegranate (Punica granatum) by-product

Conjugated linolenic acids (CLnA)

Ellagitannin (hydroxybenzoic acid)

Flavonoids

α-tocopherol

200 g/kg of feed

↓ (7-day refrigerated storage)

[102]

Heavy

Essential oil

Grape seed (Vitis vinifera)

Flavonoids (catechins, epicatechins, trans-resveratrol, and procyanidin B1)

α-tocopherol

Phytosterols

20 and 40 g/kg of feed

↓ (12-day refrigerated storage)

[103]

Heavy

Plant extract

Yerba mate (Ilex paraguariensis) extract

Caffeic acid, 5-caffeoylquinic acid, and rutin.

Alkaloids and saponins.

40 g/kg of feed

NS (7-day refrigerated storage)

[104]

Heavy

Plant by-product

Pomegranate (Punica granatum) seed cake

Conjugated linolenic acids (CLnA)

Ellagitannin (hydroxybenzoic acid)

Punicalagin and gallic acid

115 to 235 g/kg of feed

NS up to 175 g/kg of feed but ↑ at 235 g/kg of feed (1-day storage)

[105]

  1. MAP Modified-Atmosphere Package, NS Not Significant, TBARS Thiobarbituric Acid Reactive Substances
  2. 1Suckling is a 30–45 days old lamb with 12–14 kg, light is a 75–90 days old lamb with 22–28 kg, heavy is a > 120 days old lamb with > 35 kg of body-weight at slaughter
  3. 2Unless otherwise stated, refrigerated storage was conducted in polystyrene tray with oxygen-permeable polypropylene film at 4 °C. Any manuscripts detected differences in redness index (a*) of lamb meat due to feed supplement