The effect of barrel temperature (120 and 150 ℃, held constant in zones 4–6) and feed moisture (20 and 24%) on the protein quality of Kabuli chickpea, sorghum, and maize flours were examined, which included amino acid profile, in vitro protein digestibility and in vitro protein digestibility-corrected amino acid score (IV-PDCAAS). It was found that the limiting amino acid of chickpea changed from threonine to valine after extrusion, whereas both sorghum and maize were limiting in lysine before and after extrusion. The in vitro protein digestibility increased from 77 to 81% for chickpea and 73 to 76% for maize; values for sorghum remained at 74% after extrusion. However, the IV-PDCAAS for the extruded flours generally remained at the same level, 69% for chickpea, 22% for sorghum, and ∼35% for maize. The effect of extrusion temperature, moisture and their interaction was significant on protein quality of sorghum and maize, but in the case of chickpea, only the extrusion temperature was significant. Only chickpea extruded at 150 ℃ (regardless of the moisture) met the protein quality (PDCAAS > 70%) requirement to be used in food assistance products.
AlizadehKda SilvaJAT (2013) Mixed cropping of annual feed legumes with barley improves feed quantity and crude protein content under dry-land conditions. Maejo International Journal of Science and Technology7(1): 42–47.
2.
AOAC (2000) Official Methods of Analysis, 15th ed. Washington, DC: Association of Official Analytical Chemists.
3.
BaiTNosworthyMGHouseJDNickersonMT (2018) Effect of tempering moisture and infrared heating temperature on the nutritional properties of Desi chickpea and hull-less barley flours, and their blends. Food Research International108: 430–439.
4.
BhattacharyaMHannaMA (1988) Extrusion processing to improve nutritional and functional properties of corn gluten. LWT – Food Science and Technology21: 20–24.
5.
Bidlingmeyer BA, Tarvin TL and Cohen SA. (1987). Amino acid analysis of submicrogram hydrolyzate samples. In: Walsh KA (ed) Methods in Protein Sequence Analysis 1986. Totowa, NJ: Humana Press, pp. 229–245.
6.
BordoloiRGangulyS (2014) Extrusion technique in food processing and a review on its various technological parameters. Indian Journal of Scientific Research and Technology2(1): 1–3.
7.
BoyeJZareFPletchA (2010) Pulse proteins: Processing, characterization, functional properties and applications in food and feed. Food Research International43(2): 414–431.
8.
ButlerLGRiedlDJLebrykDGBlyttHJ (1984) Interaction of proteins with sorghum tannin: Mechanism, specificity and significance. Journal of the American Oil Chemists' Society61(5): 916–920.
9.
ChaiyakulSJangchudKJangchudAWuttijumnongPWingerR (2009) Effect of extrusion conditions on physical and chemical properties of high protein glutinous rice-based snack. LWT – Food Science and Technology42(3): 781–787.
10.
ChavanJKKadamSSSalunkheDKBeuchatLR (1987) Biochemistry and technology of chickpea (Cicer arietinum L.) seeds. Critical Reviews in Food Science & Nutrition25(2): 107–158.
11.
CheftelJC (1986) Nutritional effects of extrusion cooking. Food Chemistry20(4): 263–283.
12.
Colonna P, Tayeb J and Mercier C. (1989). Extrusion cooking of starch and starchy products. In: Mercier CP, Linko and Harper JM (eds) Extrusion Cooking. St. Paul, MN: American Association of Cereal Chemists, pp. 247–319.
13.
DahlinKLorenzK (1993) Nitrogen solubility of extruded cereal grains. LWT – Food Science and Technology26(1): 49–53.
14.
DamodaranS (1996) Amino acids, peptides and proteins. In: FennemaOR (ed) Food Chemistry, New York: Marcel Dekker, pp. 414–415.
15.
DayLSwansonBG (2013) Functionality of protein-fortified extrudates. Comprehensive Reviews in Food Science and Food Safety12(5): 546–564.
16.
De LumenBOBeckerRReyesPS (1986) Legumes and a cereal with high methionine/cysteine contents. Journal of Agricultural and Food Chemistry34(2): 361–364.
17.
El-HadyEAHabibaRA (2003) Effect of soaking and extrusion conditions on antinutrients and protein digestibility of legume seeds. LWT – Food Science and Technology36(3): 285–293.
18.
FAO/WHO. (1991). Protein quality evaluation: Report of the Joint FAO/WHO Expert Consultation, Bethesda, MD, USA 4–8 December 1989 (No. 51). Food & Agriculture Organization.
19.
FapojuwoOOMagaJAJansenGR (1987) Effect of extrusion cooking on in vitro protein digestibility of sorghum. Journal of Food Science52(1): 218–219.
20.
FilliKBNkamaIJideaniVAIbokIU (2012) System parameters and product properties responses during extrusion of fura from millet-soybean mixtures. Nigerian Food Journal30(1): 82–100.
21.
GaliliGAmirRHoefgenRHesseH (2005) Improving the levels of essential amino acids and sulfur metabolites in plants. Biological Chemistry386(9): 817–831.
22.
GoldbergG (2008) Plants: Diet and Health, Hoboken, NJ: John Wiley & Sons, pp. 135.
23.
Harper JM. (1988). Effects of extrusion processing on nutrients. In: Karmas E and Harris RS (eds) Nutritional Evaluation of Food Processing. Dordrecht: Springer, pp.365–391.
HoppeCAndersenGSJacobsenSMølgaardCFriisHSangildPT, et al.(2008) The use of whey or skimmed milk powder in fortified blended foods for vulnerable groups. The Journal of Nutrition138(1): 145S–161S.
26.
HsuHWVavakDLSatterleeLDMillerGA (1977) A multienzyme technique for estimating protein digestibility. Journal of Food Science42(5): 1269–1273.
27.
JafariMKoochekiAMilaniE (2018) Physicochemical and sensory properties of extruded sorghum–wheat composite bread. Journal of Food Measurement and Characterization12(1): 370–377.
28.
JärvanMEdesiLAdamsonA (2012) The content and quality of protein in winter wheat grains depending on sulphur fertilization. Acta Agriculturae Scandinavica, Section B – Soil and Plant Science62(7): 627–636.
29.
JoshiVJoungJGFeiZJanderG (2010) Interdependence of threonine, methionine and isoleucine metabolism in plants: Accumulation and transcriptional regulation under abiotic stress. Amino Acids39(4): 933–947.
Meuser F, Pfaller W and Lengerich BV. (1987). Technological aspects regarding specific changes to the characteristic properties of extrudates by HTST-extrusion cooking. In: O'Connor C (ed.) Extrusion Technology for the Food Industry. London, UK: Elsevier Applied Science, pp.35–53.
32.
Milán-CarrilloJReyes-MorenoCCamacho-HernándezILRouzaud-SandezO (2002) Optimisation of extrusion process to transform hardened chickpeas (Cicer arietinum L) into a useful product. Journal of the Science of Food and Agriculture82(14): 1718–1728.
33.
MokraneHAmouraHBelhaneche-BensemraNCourtinCMDelcourJANadjemiB (2010) Assessment of Algerian sorghum protein quality [Sorghum bicolor (L.) Moench] using amino acid analysis and in vitro pepsin digestibility. Food Chemistry121(3): 719–723.
34.
MoraesÉAQueirozVAVShaffertRECostaNMBNelsonJDRibeiroSMR, et al.(2012) In vivo protein quality of new sorghum genotypes for human consumption. Food Chemistry134(3): 1549–1555.
35.
NosworthyMGFranczykAZimoch-KorzyckaAAppahPUtiohANeufeldJ, et al.(2017a) Impact of processing on the protein quality of pinto bean (Phaseolus vulgaris) and Buckwheat (Fagopyrum esculentum Moench) flours and blends, as determined by in vitro and in vivo methodologies. Journal of Agricultural and Food Chemistry65(19): 3919–3925.
36.
NosworthyMGHouseJD (2017) Factors influencing the quality of dietary proteins: Implications for pulses. Cereal Chemistry94(1): 49–57.
37.
NosworthyMGMedinaGFranczykAJNeufeldJAppahPUtiohA, et al.(2018) Effect of processing on the in vitro and in vivo protein quality of Beans (Phaseolus vulgaris and Vicia Faba). Nutrients10(6): 671.
38.
NosworthyMGNeufeldJFrohlichPYoungGMalcolmsonLHouseJD (2017b) Determination of the protein quality of cooked Canadian pulses. Food Science and Nutrition5(4): 896–903.
39.
OluwakemiOOmodeleI (2015) The current status of cereal (maize, rice and sorghum) crops cultivation in Africa: Need for integration of advances in transgenic for sustainable crop production. International Journal of Agricultural Policy and Research3(3): 233–245.
40.
PrellJWhiteJPBourdesABunnewellSBongaertsRJPoolePS (2009) Legumes regulate Rhizobium bacteroid development and persistence by the supply of branched-chain amino acids. Proceedings of the National Academy of Sciences106(30): 12477–12482.
41.
RobinFThéodulozCSrichuwongS (2015) Properties of extruded whole grain cereals and pseudocereals flours. International Journal of Food Science & Technology50(10): 2152–2159.
42.
RosenbergITilahunJSchlossmanNBagrianskyJJohnsonQWebbP, et al.(2011) Nutritional enhancement of US Title II food aid products. Food and Nutrition Bulletin32(3_supplement3): S134–S151.
43.
SauberlichHEChangWYSalmonWD (1953) The comparative nutritive value of corn of high and low protein content for growth in the rat and chick. The Journal of Nutrition51(4): 623–635.
44.
SharmaPGujralHSSinghB (2012) Antioxidant activity of barley as affected by extrusion cooking. Food Chemistry131(4): 1406–1413.
45.
SinghSWakelingLGamlathS (2007) Retention of essential amino acids during extrusion of protein and reducing sugars. Journal of Agricultural and Food Chemistry55(21): 8779–8786.
46.
TavanoOLNevesVAda Silva JúniorSI (2016) In vitro versus in vivo protein digestibility techniques for calculating PDCAAS (protein digestibility-corrected amino acid score) applied to chickpea fractions. Food Research International89: 756–763.
47.
WebbP (2011a) USAID’s review of food aid quality. Food and Nutrition Bulletin32(3_suppl3): S131–S133.
48.
Webb P. (2011b). Improving the nutritional quality of US food aid: recommendations for changes to products and programs. Available at: https://pdf.usaid.gov/pdf_docs/pnadz841.pdf (accessed 29 March 2019).
