Sunflower seed 58706 225952854 2008-07-16T04:40:42Z Universalcosmos 4341504 /* Cultivation */ fixed FAO link [[Image:Zonnebloempit.jpg|thumb|250px|Various sunflower seed varieties .]] The '''sunflower seed''' is the [[fruit]] of the [[sunflower]] (''Helianthus annuus''). The term "sunflower seed" is actually a [[misnomer]] when applied to the seed in its [[pericarp]] (hull). Botanically speaking, it is more properly referred to as an [[achene]]. When dehulled, the edible remainder is called the sunflower kernel. For commercial purposes, sunflower seeds are usually classified by the pattern on their husks. If the husk is solid black, the seeds are called black oil sunflower seeds. The crops may be referred to as oilseed sunflower crops. These seeds are usually pressed into sunflower oil. Additionally, these seeds are usually considered the seed of choice for [[bird feeder]]s.<ref>[http://www.birds.cornell.edu/pfw/AboutBirdsandFeeding/BirdFoods.htm#Seed Cornell University: What to Feed Birds]</ref> If the husks are striped, the seeds are called striped sunflower seeds or "stripers." Due to their lower oil content, the crops are called non-oilseed sunflower crops. Striped sunflower seeds are primarily used for food; as a result, they may also be called [[confectionery]] sunflower seeds. There is also a sunflower seed that is whitish in hue, which has no current commercial use. Most commonly, sunflower seeds are black with white stripes or plain black. ==Cultivation== {| class="wikitable sortable" align=right style="clear:left" |+ Top Sunflower Seed Producers - 2005<br/>''Source: [[Food and Agriculture Organization|UN Food and Agriculture Organization]] (FAO)''<ref>[http://www.fao.org/es/ess/top/commodity.html?item=267&lang=en&year=2005 FAO: Major food and agricultural commodities and producers]</ref> ! Rank ! Country ! 10<sup>6</sup> [[metric ton|M/T]] ! [[List of countries by area|Country area]] (km²) |- | 1 || {{RUS}} || align="right" | 6.3 || align="right" | {{nts|17098242}} |- | 2 || {{UKR}} || align="right" | 4.7 || align="right" | {{nts|603700}} |- | 3 || {{ARG}} || align="right" | 3.7 || align="right" | {{nts|2780400}} |- | 4 || {{CHN}} || align="right" | 1.9 || align="right" | {{nts|9598086}} |- | 5 || {{IND}} || align="right" | 1.9 || align="right" | {{nts|3166414}} |- | 6 || {{USA}} || align="right" | 1.8 || align="right" | {{nts|9629091}} |- | 7 || {{TUR}} || align="right" | 1.0 || align="right" | {{nts|783562}} |- | 8 || {{BUL}} || align="right" | 0.9 || align="right" | {{nts|110912}} |- | 9 || {{RSA}} || align="right" | 0.7 || align="right" | {{nts|1221037}} |- | 10 || {{SRB}} || align="right" | 0.5 || align="right" | {{nts|77474}} |-class="sortbottom" | || '''World Total''' || align="right" | '''31.1''' || align="right" | |} These seeds have been cultivated for several thousand years, originally in the [[Mississippi River]] valley, the oldest known site being in [[Tennessee]]. They have been used by [[Indigenous peoples of the Americas|Native American]]s for nearly 5,000 years. They were brought to [[Europe]] by the [[Spain|Spanish]] [[conquistador]]s. When grown during a full season, big sunflower crops may yield more than 1000 pounds/acre (1121 kilograms/hectare). In some areas of the [[United States]], sunflowers can also be grown as a double crop, so that the same area can be used for two harvests in the same season. However, it is not recommended that sunflowers be planted in the same area more than once every three to four years.<ref>[http://www.jeffersoninstitute.org/pubs/sunflower.shtml#grow Thomas Jefferson Agricultural Institute: How to Grow Sunflower]</ref> ===Seeds=== {{nutritionalvalue | name=Sunflower seed kernels, dried| kJ=2385| protein=22.78 g | fat= 49.57 g | satfat=5.20 g | monofat=9.46 g | polyfat=32.74 g | carbs=18.76 g | fiber=10.5 g | | sugars=2.62 g | sodium_mg=3 | iron_mg=6.77 | calcium_mg=116 | magnesium_mg=354 | phosphorus_mg=705 | potassium_mg=689 | zinc_mg=5.06 | vitC_mg=1.4 | vitE_mg= 34.50 | vitK_mcg=2.7 | pantothenic_mg=6.75 | vitB6_mg=0.77 | folate_ug=227 | thiamin_mg=2.29 | riboflavin_mg=0.25 | niacin_mg=4.5 | manganese_mg=2.02 | copper_mg=1.75 | selenium_mcg=59.5 | right=1 | source_usda=1 }} Sunflower seeds are more commonly eaten as a healthy snack than as part of a meal. They can also be used as garnishes or ingredients in various recipes. The seeds may be sold as in-shell seeds or dehulled kernels. The seeds can also be [[Sprouting|sprouted]] and eaten in [[salads]]. When in-shell seeds are processed, they are first dried. Afterwards, they may also be roasted and/or dusted with [[salt]] or [[flour]] for preservation of flavor. Upon consumption, in-shell seeds should be dehulled and the hull should be discarded before swallowing the kernel. Dehulling is commonly performed by cracking the hull with one's teeth and spitting it out while keeping the kernel in the mouth. In-shell sunflower seeds are particularly popular in [[Mediterranean]] countries, like [[Israel]] and [[Turkey]], where they are called ''garinim'' and ''ayçekirdeği'' respectively. In Turkey and Israel, they can be bought freshly [[roasted]] in shops and [[market]]s and are a common [[stadium]] food. They are also popular in [[Spain]], [[China]], and the southeastern United States. Dehulled kernels have been mechanically processed to remove the hull. These kernels may be sold raw or roasted. These dehulled kernels are sometimes added to [[bread]] and other baked goods for their flavor. There is also sunflower butter, similar to [[peanut butter]], but utilizing sunflower seeds instead of peanuts. Apart from human consumption, sunflower seeds are also sold as food for pets and wild birds in boxes and small bags. ===Pressed oil=== {{main|Sunflower oil}} In modern society, sunflower oil is one of the most popular oils in the world. The oil may be used as is, or may be processed into polyunsaturated [[margarine]]s. The oil is typically extracted by applying great pressure to the sunflower seeds and collecting the oil. After extraction, the pressed sunflower seed cake can be used, which is rich in [[protein]]s. The original sunflower oil (linoleic sunflower oil) is high in polyunsaturated [[fatty acid]]s (about 66% [[linoleic acid]]) and low in saturated fats, such as [[palmitic acid]] and [[stearic acid]]. However, various [[Hybrid (biology)|hybrid]]s have been developed to alter the fatty acid profile of the crop for various purposes.<ref>[http://www.sunflowernsa.com/oil/default.asp?contentID=145 National Sunflower Association : Sunflower Oil]</ref> In the future, sunflower oil could become a renewable bio-source for [[hydrogen]]. A team for the [[University of Leeds]] has developed a workable method for the extraction of [[hydrogen]] from sunflower oil, through a chain of chemical reactions with nickel and carbon-based [[catalyst]]s.<ref>[http://news.bbc.co.uk/2/hi/science/nature/3601130.stm BBC NEWS: Sunflower oil boost to car future]</ref> However, while the plant's photosynthesis essentially captures the hydrogen, the energy necessary to liberate hydrogen gas from the hydrocarbons from sunflower oil is considerably greater than the energy of the liberated gas. Therefore, although sunflower oil could certainly be used for this purpose, it is not, by any means, a 'free' or even 'eco-friendly' source of energy. ===Health benefits=== In addition to [[linoleic acid]] (an [[essential fatty acid]]), sunflower seeds are also an excellent source of [[dietary fiber]], [[protein]], [[Vitamin E]], [[B Vitamins]], and [[Dietary mineral|mineral]]s such as potassium, [[magnesium]], [[iron]], [[phosphorus]], [[selenium]], [[calcium]] and [[zinc]].<ref>[http://whfoods.com/genpage.php?tname=foodspice&dbid=57 WHFoods: Sunflower seeds]</ref> Additionally, they are rich in [[cholesterol]]-lowering [[phytosterol]]s.<ref>[http://www.sciencedaily.com/releases/2005/12/051207181227.htm Science Daily: Sunflower Seeds, Pistachios Among Top Nuts For Lowering Cholesterol]</ref> They are also low calorie food. ==References== {{reflist}} ==See also== * [[List of edible seeds]] ==External links== *[http://www.sunflowernsa.com/default.asp National Sunflower Association (United States)] *[http://whfoods.com/genpage.php?tname=foodspice&dbid=57 The World's Healthiest Foods: Sunflower seeds] [[Category:Edible nuts and seeds]] [[Category:Snack foods]] [[Category:Vegan snacks]] [[Category:Crops originating from the Americas]] [[Category:Native crops of the United States]] [[de:Sonnenblume#Verwendung_als_Nahrungsmittel]] [[es:Pipas de girasol]] [[hu:Napraforgómag]] [[nl:Zonnebloempit]] [[pt:Semente de girassol]] [[ru:Семечки]] [[zh:葵花籽]]